She must have seen Bill and me subside in our chairs, because she shook her head and said, "Now then, I've been talking my fool head off, and never given you any afters. It's apple pie and cheese." As she rose from her place and went to the pantry, and Jim Trevelyan followed her out of the kitchen, Bill turned to me. "Can you believe it, I never thought to ask ? I mean, I did ask Jim Trevelyan about things that used to be in Little House, and he said his father threw everything out but what's there now. But I left it at that. I never asked Annie."

"No harm done. We know now, don't we? Luke Derwent, he's the artist, and Louisa, she's the mathematician and engineer."

"And the programmer—a century before computer programming was supposed to exist." Bill stopped. We were not supposed to be discussing this until I had examined the rest of the materials. But we were saved from more talk by the return of Jim Trevelyan. He was holding a huge book, the size of a small suitcase, with a black embossed cover and brass-bound corners.

"I told you Dad chucked everything," he said. "And he did, near enough, threw it out or burned it. But he were a religious man, and he knew better than to destroy a Bible." He dropped it on the table, with a thump that shook the solid wood. "This comes from Little House. If you want to take a look at it, even take it on back there with you, you're very welcome."

I pulled the book across to me and unhooked the thick metal clasp that held it shut. I knew, from the way that some of the pages did not lie fully closed at their edges, that there must be inserts. The room went silent, as I nervously leafed through to find them.

The disappointment that followed left me as hollow as though I had eaten nothing all day. There were inserts, sure enough: dried wildflowers, gathered long, long ago, and pressed between the pages of the Bible. I examined every one, and riffled through the rest of the book to make sure nothing else lay between the pages. At last I took a deep breath and pushed the Bible away from me. Bill reached out and pulled it in front of him. "There's one other possibility," he said. "If their family happened to be anything like mine. . . ."

He turned to the very last page of the Bible. The flyleaf was of thick, yellowed paper. On it, in faded multi-colored inks, a careful hand had traced the Derwent family tree.

Apple pie and cheese were forgotten, while Bill and I, with the willing assistance of Jim and Annie Trevelyan, examined every name of the generations shown, and made a more readable copy as we went. At the time it finally seemed like more disappointment. Not one of us recognized a single name, except for those of Luke and Louisa Derwent, and those we already knew. The one fact added by the family tree was they were half-brother and sister, with a common father. There were no dates, and Luke and Louisa were the last generation shown.

Bill and I admitted that we were at a dead end. Annie served a belated dessert, and after it the two of us wrapped the two pictures in waterproof covers (though it was not raining) and headed back up the hill to Little House, promising Annie that we would certainly be back for breakfast. We were walking in silence, until halfway up the hill Bill said suddenly, "I'm sorry. I saw it, too, the resemblance to Eileen. I knew it would hit you. But I couldn't do anything about it."

"It was the expression, more than anything," I said. "That tilt to the chin, and the look in her eyes. But it was just coincidence, they're not really alike. That sort of thing is bound to happen."

"Hard on you, though."

"I'm fine."

"Great." Bill's voice showed his relief. "I wasn't going to say anything, but I had to be sure you were all right."

"I'm fine."

Fine, except that no more than a month ago a well-meaning friend of many years had asked me, "Do you think of Eileen as the love of your life?"

And my heart had dropped through a hole in the middle of my chest, and lodged like a cold rock in the pit of my belly.

When we reached Little House I pleaded residual travel fatigue and went straight to bed. With so much of Jim Trevelyan's powerful home-brew inside me, my sleep should have been deep and dreamless. But the dead, once roused, do not lie still so easy.

Images of Eileen and the happy past rose before me, to mingle and merge with the Derwent picture. Even in sleep, I felt a terrible sadness. And the old impotence came back, telling me that I had been unable to change in any way the only event in my life that really mattered.

With my head still half a world away in a different time zone, I woke long before dawn. The fire, well damped by Bill before he went to bed, was still glowing under the ash, and a handful of firewood and more coal was all it needed to bring it back to full life.

Bill was still asleep when I turned on the two oil lamps, pulled the three books within easy reach, and settled down to read. I was determined to be in a position to talk to him by the time we went down to Big House for breakfast, but it was harder than I expected. Yesterday I had been overtired, now I had to go back and reread some of the letters before I was ready to press on.

I had been in the spring of 1855, with some sort of Analytical Engine finished and working. But now, when I was desperate to hear more details, Luke Derwent frustrated me. He vanished for four months from the ledger, and returned at last not to report on Louisa's doings, but brimming over with wonder at his own.

21 September, 1855. Glory to Almighty God, and let me pray that I never again have doubts. L. and I have wondered, so many times, about our decision to come here. We have never regretted it, but we have asked if it was done for selfish reasons. Now, at last, it is clear that we are fulfilling a higher purpose.

Yesterday I returned from my latest journey to Macquarie Island. They were there! The

"cold-loving people," just as my native friends assured me. In truth, they find the weather of the island too warm in all but the southern winter months of May to August, and were almost ready to depart again when our ship made landfall. For they are migrant visitors, and spend the bulk of the year in a more remote location.

The natives term them "people," and I must do the same, for although they do not hold the remotest outward aspect of humans, they are without doubt intelligent. They are able to speak to the natives, with the aid of a box that they carry from place to place. They possess amazing tools, able to fabricate the necessities of life with great speed. According to my native translators, although they have their more permanent base elsewhere in this hemisphere, they come originally from "far, far off." This to the Maori natives means from far across the seas, although I am less sure of this conclusion.

And they have wonderful powers in medical matters. The Maori natives swear that one of their own number, so close to death from gangrenous wounds that death was no more than a day away, was brought to full recovery within hours. Another woman was held, frozen but alive, for a whole winter, until she could be treated and restored to health by the wonderful medical treatment brought from their permanent home by the "cold-loving people" (for whom in truth it is now incumbent upon me to find a better name). I should add that they are friendly, and readily humored me in my desire to make detailed drawings of their form. They asked me through my Maori interpreter to speak English, and assured me that upon my next visit they would be able to talk to me in my own language.

All this is fascinating. But it pales to nothing beside the one central question: Do these beings possess immortal souls? We are in no position to make a final decision on such a matter, but L. and I agree that in our actions we must assume that the answer is yes. For if we are in a position to bring to Christ even one of these beings who would otherwise have died unblessed, then it is our clear duty to do so.

It was a digression from the whole subject of the Analytical Engine, one so odd that I sat and stared at the page for a long time. And the next entry, with its great outburst of emotion, seemed to take me even farther afield.

Dear J.G., I have the worst news in the world. How can I tell you this—L.'s old disease is returned, and, alas, much worse than before. She said nothing to me, but yesterday I discovered bright blood on her handkerchief, and such evidence she could not deny. At my insistence she has visited a physician, and the prognosis is desperate indeed. She is amazingly calm about the future, but I cannot remain so sanguine. Pray for her, my dear friend, as I pray constantly. The letter was dated 25 September, just a few days after his return from his travels. Immediately following, as though Luke could not contain his thoughts, the diary ran on: Louisa insists what I cannot believe: that her disease is no more than God's just punishment, paid for the sin of both of us. Her calm and courage are beyond belief. She is delighted that I remain well, and she seems resigned to the prospect of her death, as I can never be resigned. But what can I do? What? I cannot sit idly, and watch her slowly decline. Except that it will not be slow. Six months, no more.

His travels among the colony of the "cold-loving people" were forgotten. The Analytical Engine was of no interest to him. But that brief diary entry told me a great deal. I pulled out the picture of Luke and Louisa Derwent, and was staring at it when Bill emerged rumple-haired from the bedroom. This time, I was the one desperate to talk. "I know! I know why they came all the way to New Zealand."

He stared, at me and at the picture I was holding. "How can you?"

"We ought to have seen it last night. Remember the family tree in the Bible? It showed they're half-brother and half sister. And this ." I held the painting out towards him. He rubbed his eyes, and peered at it. "I saw. What about it?"

"Bill, it's a wedding picture . See the bouquet, and the ring on her finger? They couldn't possibly have married back in England, the scandal would have been too great. But here, where nobody knew them, they could make a fresh start and live as man and wife."

He was glancing across to the open ledger, and nodding. "Damn it, you're right. It explains everything. Their sin, he said. You got to that?"

"I was just there."

"Then you're almost at the end. Read the last few pages, then let's head down to Big House for breakfast. We can talk on the way."

He turned and disappeared back into the bedroom. I riffled through the ledger. As he said, I was close to the place where the entries gave way to blank pages.

There was just one more letter, to the same far-off friend. It was dated 6 October, 1855, and it was calm, even clinical.

Dear J.G., L. and I will in a few days be embarking upon a long journey to a distant island, where dwell a certain pagan native people; these are the Heteromorphs (to employ L.'s preferred term for them, since they are very different in appearance from other men, although apparently sharing our rational powers). To these beings we greatly wish to carry the blessings of Our Lord, Jesus Christ. It will be a dangerous voyage. Therefore, if you hear nothing from us within four years, please dispose of our estate according to my earlier instructions. I hope that this is not my last letter to you; however, should that prove to be the case, be assured that we talk of you constantly, and you are always in our thoughts. In the shared love of our savior, L.D. It was followed by the scribbled personal notes.

I may be able to deceive Louisa, and the world, but I do not deceive myself. God forgive me, when I confess that the conversion of the Heteromorphs is not my main goal. For while the message of Christ might wait until they return to their winter base on Macquarie Island, other matters cannot wait. My poor Louisa. Six months, at most. Already she is weakening, and the hectic blush sits on her cheek. Next May would be too late. I must take Louisa now, and pray that the Maori report of powerful Heteromorph medical skills is not mere fable. We will carry with us the word of Christ. Louisa is filled with confidence that this is enough for every purpose, while I, rank apostate, am possessed by doubts. Suppose that they remain, rejecting divine truth, a nation of traders? I know exactly what I want from them. But what do I have to offer in return?

Perhaps this is truly a miracle of God's bounty. For I can provide what no man has ever seen before, a marvel for this and every age: Louisa's great Engine, which, in insensate mechanic operation, appears to mimic the thought of rational, breathing beings. This, surely, must be of inestimable value and interest, to any beings, no matter how advanced.

Then came a final entry, the writing of a man in frantic haste.

Louisa has at last completed the transformations of the information that I received from the Heteromorphs. We finally have the precise destination, and leave tomorrow on the morning tide. We are amply provisioned, and our native crew is ready and far more confident than I. Like Rabelais, "Je m'en vais chercher un grand peut-être." God grant that I find it. I go to seek a "great perhaps." I shivered, stood up and went through to the bedroom, where Bill was pulling on a sweater.

"The Analytical Engine. They took it with them when they left."

"I agree." His expression was a strange blend of satisfaction and frustration. "But now tell me this. Where did they go? "

"I can't answer that."

"We have to. Take a look at this." Bill headed past me to the kitchen, his arms still halfway into the sleeves. He picked up the folder of drawings that we had brought from the crawl space. "You've hardly glanced at these, but I've spent as much time on them as on the letters. Here." He passed me a pen-and-ink drawing that showed one of the creatures seen from the front. There was an abundance of spindly legs—I counted fourteen, plus four thin, whiskery antennae—and what I took to be two pairs of eyes and delicate protruding eyestalks.

Those were the obvious features. What took the closer second look were the little pouches on each side of the body, not part of the animal and apparently strapped in position. Held in four of the legs was a straight object with numbers marked along its length.

"That's a scale bar," said Bill, when I touched a finger to it. "If it's accurate, and I've no reason to think Luke went would have drawn it wrong, his 'Heteromorphs' were about three feet tall."

"And those side pouches are for tools."

"Tools, food, communications equipment—they could be anything. See, now, why I told you I thought for the past couple of weeks I was going mad? To have this hanging in front of me, and have no idea how to handle it."

"That place he mentioned. Macquarie Island?"

"Real enough. About seven hundred miles south and west of here. But I can promise you, there's nothing there relating to this. It's too small, it's been visited too often. Anything like the Heteromorphs would have been reported, over and over. And it's not where Derwent said he was going. He was heading somewhere else, to their more permanent base. Wherever that was." Bill's eyes were gleaming, and his mouth was quivering. He had been living with this for too long, and now he was walking the edge. "What are we going to do ?"

"We're heading down to Big House, so Annie can feed us. And we're going to talk this through." I took his arm. "Come on."

The cold morning air cut into us as soon as we stepped outside the door. As I had hoped, it braced Bill and brought him down.

"Maybe we've gone as far as we can go," he said, in a quieter voice. "Maybe we ought to go public with everything, and just tell the world what we've found."

"We could. But it wouldn't work."

"Why not?'

"Because when you get right down to it, we haven't found anything. Bill, if it hadn't been you who sent me that letter and package of stuff, do you know what I would have said?"

"Yeah. Here's another damned kook."

"Or a fraud. I realized something else when I was reading those letters. If Jim and Annie Trevelyan had found everything in the crawl space, and shipped it to Christchurch, it would have been plausible. You can tell in a minute they know nothing about Babbage, or computers, or programming. But if you wanted two people who could have engineered a big fat hoax, you'd have to go a long way to find someone better qualified than the two of us. People would say, ah, they're computer nuts, and they're science history nuts, and they planned a fake to fool everybody."

"But we didn't!"

"Who knows that, Bill, other than me and you? We have nothing to show . What do we do, stand up and say, oh, yes, there really was an Analytical Engine, but it was taken away to show to these aliens? And unfortunately we don't know where they are, either."

Bill sighed. "Right on. We'd be better off saying it was stolen by fairies." We had reached Big House. When we went inside, Annie Trevelyan took one look at our faces and said, "Ay, you've had bad news then." And as we sat down at the table and she began to serve hot cakes and sausage. "Well, no matter what it is, remember this: you are both young, and you've got your health. Whatever it is, it's not the end of the world."

It only seemed like it. But I think we realized that Annie Trevelyan was smarter than both of us.

"I'll say it again," said Bill, after a moment or two. "What do we do now?"

"We have breakfast, and then we go back to Little House, and we go over everything , together. Maybe we're missing something."

"Yeah. So far, it's a month of my life." But Bill was starting to dig in to a pile of beef sausage, and that was a good sign. He and I are both normally what Annie called "good eaters," and others, less kind, would call gluttons.

She fed us until we refused another morsel of food, then ushered us out. "Go and get on with it," she said cheerfully. "You'll sort it out. I know you will."

It was good to have the confidence of at least one person in the world. Stuffed with food, we trudged back up the hill. I felt good, and optimistic. But I think that was because the materials were so new to me. Bill must have stared at them already until his eyes popped out.

Up at Little House once more, the real work started. We went over the letters and diary again, page by page, date by date, phrase by phrase. Nothing new there, although now that we had seen it once, we could see the evidence again and again of the brother-sister/husband-wife ambivalence. The drawings came next. The Heteromorphs were so alien in appearance that we were often guessing as to the function of organs or the small objects that on close inspection appeared to be slung around their bodies or held in one of the numerous claws, but at the end of our analysis we had seen nothing to change our opinions, or add to our knowledge.

We were left with one more item: the ledger of tables of numbers, written in the hand of Louisa Derwent. Bill opened it at random and we stared at the page in silence.

"It's dated October, 1855, like all the others," I said at last, "That's when they left."

"Right. And Luke wrote 'Louisa has completed the necessary calculations.' " Bill was scowling down at a list of numbers, accusing it of failing to reveal to us its secrets. "Necessary for what?" I leaned over his shoulder. There were twenty-odd entries in the table, each a two or three digit number.

"Nothing obvious. But it's reasonable to assume that this has something to do with the journey, because of the date. What else would Louisa have been working on in the last few weeks?"

"It doesn't look anything like a navigation guide. But it could be intermediate results. Worksheets." Bill went back to the first page of the ledger, and the first table. "These could be distances to places they would reach on the way."

"They could. Or they could be times, or weights, or angles, or a hundred other things. Even if they are distances, we have no idea what units they are in. They could be miles, or nautical miles, or kilometers, or anything."

It sounds as though I was offering destructive criticism, but Bill knew better. Each of us had to play devil's advocate, cross-checking the other every step of the way, if we were to avoid sloppy thinking and unwarranted assumptions.

"I'll accept all that," he said calmly. "We may have to try and abandon a dozen hypotheses before we're done. But let's start making them, and see where they lead. There's one main assumption, though, that we'll have to make: these tables were somehow used by Luke and Louisa Derwent, to decide how to reach the Heteromorphs. Let's take it from there, and let's not lose sight of the only goal we have: We want to find the location of the Heteromorph base."

He didn't need to spell out to me the implications. If we could find the base, maybe the Analytical Engine would still be there. And I didn't need to spell out to him the other, overwhelming probability: chances were, the Derwents had perished on the journey, and their long-dead bodies lay somewhere on the ocean floor.

We began to work on the tables, proposing and rejecting interpretations for each one. The work was tedious, time-consuming, and full of blind alleys, but we did not consider giving up. From our point of view, progress of sorts was being made as long as we could think of and test new working assumptions. Real failure came only if we ran out of ideas.

We stopped for just two things: sleep, and meals at Big House. I think it was the walk up and down the hill, and the hours spent with Jim and Annie Trevelyan, that kept us relatively sane and balanced. Five days fled by. We did not have a solution; the information in the ledger was not enough for that. But we finally, about noon on the sixth day, had a problem.

A mathematical problem. We had managed, with a frighteningly long list of assumptions and a great deal of work, to reduce our thoughts and calculations to a very unpleasant-looking nonlinear optimization. If it possessed a global maximum, and could be solved for that maximum, it might yield, at least in principle, the location on Earth whose probability of being a destination for the Derwents was maximized. Lots of "ifs." But worse than that, having come this far neither Bill nor I could see a systematic approach to finding a solution. Trial-and-error, even with the fastest computer, would take the rest of our lives. We had been hoping that modern computing skills and vastly increased raw computational power could somehow compensate for all the extra information that Louisa Derwent had available to her and we were lacking. So far, the contest wasn't even close.

We finally admitted that, and sat in the kitchen staring at each other.

"Where's the nearest phone?" I asked.

"Dunedin, probably. Why?"

"We've gone as far as we can alone. Now we need expert help."

"I hate to agree with you." Bill stood up. "But I have to. We're out of our depth. We need the best numerical analyst we can find."

"That's who I'm going to call."

"But what will you tell him? What do we tell anyone ?"

"Bits and pieces. As little as I can get away with." I was pulling on my coat, and picking up the results of our labors. "For the moment, they'll have to trust us."

"They'll have to be as crazy as we are," he said.

The good news was that the people we needed tended to be just that. Bill followed me out.

* * *

We didn't stop at Dunedin. We went all the way to Christchurch, where Bill could hitch a free ride on the university phone system.

We found a quiet room, and I called Stanford's computer science department. I had an old extension, but I reached the man I wanted after a couple of hops—I was a little surprised at that, because as a peripatetic and sociable bachelor he was as often as not in some other continent.

"Where are you?" Gene said, as soon as he knew who was on the line. That may sound like an odd opening for a conversation with someone you have not spoken to for a year, but usually when one of us called the other, it meant that we were within dinner-eating distance. Then we would have a meal together, discuss life, death, and mathematics, and go our separate ways oddly comforted.

"I'm in Christchurch. Christchurch, New Zealand."

"Right." There was a barely perceptible pause at the other end of the line, then he said, "Well, you've got my attention. Are you all right?"

"I'm fine. But I need an algorithm." I sketched out the nature of the problem, and after I was finished he said, "It sounds a bit like an under-determined version of the Traveling Salesman problem, where you have incomplete information about the nodes."

"That's pretty much what we decided. We know a number of distances, and we know that some of the locations and the endpoint have to be on land. Also, the land boundaries place other constraints on the paths that can be taken. Trouble is, we've no idea how to solve the whole thing."

"This is really great," Gene said—and meant it. I could almost hear him rubbing his hands at the prospect of a neat new problem. "The way you describe it, it's definitely non-polynomial unless you can provide more information. I don't know how to solve it, either, but I do have ideas. You have to give me all the details."

"I was planning to. This was just to get you started thinking. I'll be on a midnight flight out of here, and I'll land at San Francisco about eight in the morning. I can be at your place by eleven-thirty. I'll have the written details."

"That urgent?"

"It feels that way. Maybe you can talk me out of it over dinner." After I rang off, Bill Rigley gave me a worried shake of his head. "Are you sure you know what you're doing? You'll have to tell him quite a bit."

"Less than you think. Gene will help, I promise." I had just realized what I was doing. I was cashing intellectual chips that I had been collecting for a quarter of a century.

"Come on," I said. "Let's go over everything one more time. Then I have to get out of here."

The final division of labor had been an easy one to perform. Bill had to go back to Little House, and make absolutely sure that we had not missed one scrap of information that might help us. I must head for the United States, and try to crack our computational problem. Bill's preliminary estimate, of 2,000 hours on a Cray-YMP, was not encouraging.

I arrived in San Francisco one hour behind schedule, jet lagged to the gills. But I made up for lost time on the way to Palo Alto, and was sitting in the living room of Gene's house on Constanza by midday. True to form, he had not waited for my arrival. He had already been in touch with half a dozen people scattered around the United States and Canada, to see if there was anything new and exciting in the problem area we were working. I gave him a restricted version of the story of Louisa Derwent and the vanished Analytical Engine, omitting all suggestion of aliens, and then showed him my copy of our analyses and the raw data from which we had drawn it. While he started work on that, I borrowed his telephone and wearily tackled the next phase.

Gene would give us an algorithm, I was sure of that, and it would be the best that today's numerical analysis could provide. But even with that best, I was convinced that we would face a most formidable computational problem.

I did not wait to learn just how formidable. Assuming that Bill and I were right, there would be other certainties. We would need a digital data base of the whole world, or at least the southern hemisphere, with the land/sea boundaries defined. This time my phone call gave a less satisfactory answer. The Defense Mapping Agency might have what I needed, but it was almost certainly not generally available. My friend (with a guarantee of anonymity) promised to do some digging, and either finagle me a loaner data set or point me to the best commercial sources.

I had one more call to make, to Marvin Minsky at the MIT Media Lab. I looked at the clock as I dialed. One forty-five. On the East Coast it was approaching quitting time for the day. Personally, I felt long past quitting time.

I was lucky again. He came to the phone sounding slightly surprised. We knew each other, but not all that well—not the way that I knew Bill, or Gene.

"Do you still have a good working relationship with Thinking Machines Corporation?" I asked.

"Yes." If a declarative word can also be a question, that was it.

"And Danny Hillis is still chief scientist, right?"

"He is."

"Good. Do you remember in Pasadena a few years ago you introduced us?"

"At the Voyager Neptune flyby. I remember it very well." Now his voice sounded more and more puzzled. No wonder. I was tired beyond belief, and struggling to stop my thoughts spinning off into non-sequiturs.

"I think I'm going to need a couple of hundred hours of time," I said, "on the fastest Connection Machine there is."

"You're talking to the wrong person."

"I may need some high priority access." I continued as though I had not heard him. "Do you have a few minutes while I tell you why I need it?"

"It's your nickel." Now the voice sounded a little bit skeptical, but I could tell he was intrigued.

"This has to be done in person. Maybe tomorrow morning?"

"Friday? Hold on a moment."

"Anywhere you like," I said, while a muttered conversation took place at the other end of the line. "It won't take long. Did you say tomorrow is Friday ?"

I seemed to have lost a day somewhere. But that didn't matter. By tomorrow afternoon I would be ready and able to sleep for the whole weekend.

Everything had been rushing along, faster and faster, towards an inevitable conclusion. And at that point, just where Bill and I wanted the speed to be at a maximum, events slowed to a crawl. In retrospect, the change of pace was only in our minds. By any normal standards, progress was spectacularly fast.

For example, Gene produced an algorithm in less than a week. He still wanted to do final polishing, especially to make it optimal for parallel processing, but there was no point in waiting before programming began. Bill had by this time flown in from New Zealand, and we were both up in Massachusetts. In ten days we had a working program and the geographic data base was on-line. Our first Connection Machine run was performed that same evening. It was a success, if by "success" you mean that it did not bomb. But it failed to produce a well-defined maximum of any kind. So then the tedious time began. The input parameters that we judged to be uncertain had to be run over their full permitted ranges, in every possible variation. Naturally, we had set up the program to perform that parametric variation automatically, and to proceed to the next case whenever the form of solution was not satisfactory. And just as naturally, we could hardly bear to leave the computer. We wanted to see the results of each run, to be there when—or if—the result we wanted finally popped out. For four whole days, nothing emerged that was even encouraging. Any computed maxima were hopelessly broad and unacceptably poorly-defined.

We went on haunting the machine room, disappearing only for naps and hurried meals. It resembled the time of our youth, when hands-on program debugging was the only sort known. In the late night hours I felt a strange confluence of computer generations. Here we were, working as we had worked many years ago, but now we were employing today's most advanced machine in a strange quest for its own earliest ancestor.

We must have been a terrible nuisance to the operators, as we brooded over input and fretted over output, but no one said an unkind word. They must have sensed, from vague rumors, or from the more direct evidence of our behavior, that something very important to us was involved in these computations. They encouraged us to eat and rest; and it seemed almost inevitable that when at last the result that Bill and I had been waiting for so long emerged from the electronic blizzard of activity within the Connection Machine, neither of us would be there to see it.

The call came at eight-thirty in the morning. We had left an hour earlier, and were eating a weary breakfast in the Royal Sonesta motel, not far from the installation.

"I have something I think you should see," said the hesitant voice of the shift operator. He had watched us sit dejected over a thousand outputs, and he was reluctant now to raise our hopes. "One of the runs shows a sharp peak. Really narrow and tight."

They had deduced what we were looking for. "We're on our way," said Bill. Breakfast was left half-eaten—a rare event for either of us—and in the car neither of us could think of anything to say. The run results were everything that the operator had suggested. The two-dimensional probability density function was a set of beautiful concentric ellipses, surrounding a single land location. We could have checked coordinates with the geographic data base, but we were in too much of a hurry. Bill had lugged a Times atlas with him all the way from Auckland, and parked it in the computer room. Now he riffled through it, seeking the latitude and longitude defined by the run output.

"My God!" he said after a few seconds. "It's South Georgia." After my first bizarre reaction—South Georgia! How could the Derwents have undertaken a journey to so preposterous a destination, in the southeastern United States?—I saw where Bill's finger lay. South Georgia Island . I had hardly heard of it, but it was a lonely smear of land in the far south of the Atlantic Ocean.

Bill, of course, knew a good deal about the place. I have noticed this odd fact before, people who live south of the equator seem to know far more about the geography of their hemisphere than we do about ours. Bill's explanation, that there is a lot less southern land to know about, is true but not completely convincing.

It did not matter, however, because within forty-eight hours I too knew almost all there was to know about South Georgia. It was not very much. The Holy Grail that Bill and I had been seeking so hard was a desolate island, about a hundred miles long and twenty miles wide. The highest mountains were substantial, rising almost to ten thousand feet, and their fall to the sea was a dreadful chaos of rocks and glaciers. It would not be fair to say that the interior held nothing of interest, because no one had ever bothered to explore it.

South Georgia had enjoyed its brief moment of glory at the end of the last century, when it had been a base for Antarctic whalers, and even then only the coastal area had been inhabited. In 1916, Shackleton and a handful of his men made a desperate and successful crossing of the island's mountains, to obtain help for the rest of his stranded trans-Antarctic expedition. The next interior crossing was not until 1955, by a British survey team.

That is the end of South Georgia history. Whaling was the only industry. With its decline, the towns of Husvik and Grytviken dwindled and died. The island returned to its former role, as an outpost beyond civilization.

None of these facts was the reason, though, for Bill Rigley's shocked "My God!" when his finger came to rest on South Georgia. He was amazed by the location. The island lies in the Atlantic ocean, at 54

degrees south. It is six thousand miles away from New Zealand, or from the Heteromorph winter outpost on Macquarie Island.

And those are no ordinary six thousand miles, of mild winds and easy trade routes.

"Look at the choice Derwent had to make," said Bill. "Either he went west , south of Africa and the Cape of Good Hope. That's the long way, nine or ten thousand miles, and all the way against the prevailing winds. Or he could sail east . That way would be shorter, maybe six thousand miles, and mostly with the winds. But he would have to go across the South Pacific, and then through the Drake Passage between Cape Horn and the Antarctic Peninsula."

His words meant more to me after I had done some reading. The southern seas of the Roaring Forties cause no shivers today, but a hundred years ago they were a legend to all sailing men, a region of cruel storms, monstrous waves, and deadly winds. They were worst of all in the Drake Passage, but that wild easterly route had been Luke Derwent's choice. It was quicker, and he was a man for whom time was running out.

While I did my reading, Bill was making travel plans. Were we going to South Georgia? Of course we were, although any rational process in my brain told me, more strongly than ever, that we would find nothing there. Luke and Louisa Derwent never reached the island. They had died, as so many others had died, in attempting that terrible southern passage below Cape Horn.

There was surely nothing to be found. We knew that. But still we drained our savings, and Bill completed our travel plans. We would fly to Buenos Aires, then on to the Falkland Islands. After that came the final eight hundred miles to South Georgia, by boat, carrying the tiny two-person survey aircraft whose final assembly must be done on the island itself.

Already we knew the terrain of South Georgia as well as anyone had ever known it. I had ordered a couple of SPOT satellite images of the island, good cloud-free pictures with ten-meter resolution. I went over them again and again, marking anomalies that we wanted to investigate. Bill did the same. But at that point, oddly enough, our individual agendas diverged. His objective was the Analytical Engine, which had dominated his life for the past few months. He had written out, in full, the sequence of events that led to his discoveries in New Zealand, and to our activities afterwards. He described the location and nature of all the materials at Little House. He sent copies of everything, dated, signed, and sealed, to the library of his own university, to the British Museum, to the Library of Congress, and to the Reed Collection of rare books and manuscripts in the Dunedin Public Library. The discovery of the Analytical Engine—or of any part of it—somewhere on South Georgia Island would validate and render undeniable everything in the written record.

And I? I wanted to find evidence of Louisa Derwent's Analytical Engine, and even more so of the Heteromorphs. But beyond that, my thoughts turned again and again to Luke Derwent, in his search for the "great perhaps."

He had told Louisa that their journey was undertaken to bring Christianity to the cold-loving people; but I knew better. Deep in his heart he had another, more selfish motive. He cared less about the conversion of the Heteromorphs than about access to their great medical powers. Why else would he carry with him, for trading purposes, Louisa's wondrous construct, the "marvel for this and every age"—a clanking mechanical computer, to beings who possessed machines small and powerful enough to serve as portable language translators.

I understood Luke Derwent completely, in those final days before he sailed east. The love of his life was dying, and he was desperate. Would he, for a chance to save her, have risked death on the wild southern ocean? Would he have sacrificed himself, his whole crew, and his own immortal soul, for the one-in-a-thousand chance of restoring her to health? Would anyone take such a risk?

I can answer that. Anyone would take the risk, and count himself blessed by the gods to be given the opportunity.

I want to find the Analytical Engine on South Georgia, and I want to find the Heteromorphs. But more than either of those, I want to find evidence that Luke Derwent succeeded, in his final, reckless gamble. I want him to have beaten the odds. I want to find Louisa Derwent, frozen but alive in the still glaciers of the island, awaiting her resurrection and restoration to health.

I have a chance to test the kindness of reality. For in just two days, Bill and I fly south and seek our evidence, our own "great perhaps." Then I will know.

But now, at the last moment, when we are all prepared, events have taken a more complex turn. And I am not sure if what is happening will help us, or hinder us.

Back in Christchurch, Bill had worried about what I would tell people when we looked for help in the States. I told him that I would say as little as we could get away with, and I kept my word. No one was given more than a small part of the whole story, and the main groups involved were separated by the width of the continent.

But we were dealing with some of the world's smartest people. And today, physical distance means nothing. People talk constantly across the computer nets. Somewhere, in the swirling depths of GEnie, or across the invisible web of an Ethernet, a critical connection was made. And then the inevitable crosstalk began.

Bill learned of this almost by accident, discussing with a travel agent the flights to Buenos Aires. Since then I have followed it systematically.

We are not the only people heading for South Georgia Island. I know of at least three other groups, and I will bet that there are more.

Half the MIT Artificial Intelligence lab seems to be flying south. So is a substantial fraction of the Stanford Computer Science Department, with additions from Lawrence Berkeley and Lawrence Livermore. And from southern California, predictably, comes an active group centered on Los Angeles. Niven, Pournelle, Forward, Benford and Brin cannot be reached. A number of JPL staff members are mysteriously missing. Certain other scientists and writers from all over the country do not return telephone calls.

What are they all doing? It is not difficult to guess. We are talking about individuals with endless curiosity, and lots of disposable income. Knowing their style, I would not be surprised if the Queen Mary were refurbished in her home at Long Beach, and headed south.

Except that they, like everyone else, will be in a hurry, and go by air. No one wants to miss the party. These are the people, remember, who did not hesitate to fly to Pasadena for the Voyager close flybys of the outer planets, or to Hawaii and Mexico to see a total solar eclipse. Can you imagine them missing a chance to be in on the discovery of the century, of any century? Not only to observe it, but maybe to become part the discovery process itself. They will converge on South Georgia in their dozens—their scores—their hundreds, with their powerful laptop computers and GPS terminals and their private planes and advanced sensing equipment.

Logic must tell them, as it tells me, that we will find absolutely nothing. Luke and Louisa Derwent are a century dead, deep beneath the icy waters of the Drake Passage. With them, if the machine ever existed, lie the rusting remnants of Louisa's Analytical Engine. The Heteromorphs, if they were ever on South Georgia Island, are long gone.

I know all that. So does Bill. But win or lose, Bill and I are going. So are all the others. And win or lose, I know one other thing. After we, and our converging, energetic, curious, ingenious, sympathetic horde, are finished, South Georgia will never be the same.

This is for Garry Tee—who is a professor of Computer Science at the University of Auckland;

—who is a mathematician, computer specialist, and historian of science;

—who discovered parts of Babbage's Difference Machine in Dunedin, New Zealand;

—who programmed the DEUCE computer in the late 1950s, and has been a colleague and friend since that time;

—who is no more Bill Rigley than I am the narrator of this story.

Charles Sheffield

December 31, 1991

Down In The Bottomlands

by Harry Turtledove

Few historians have ever written speculative fiction. There seems a natural contradiction between the precise inspection of the past and the colorful, evocative envisioning of the future. There are notable exceptions, of course: the entire subgenre of alternate history, which flows forward from the early nineteenth century. This method of inspecting the currents of history has produced such masterworks as L. Sprague DeCamp's Lest Darkness Fall and Ward Moore's Bring the Jubilee. To tinker with history and test one's ideas is enticing; I edited a series of books of alternate history, including four volumes of What Might Have Been and Hitler Victorious; the subject is endlessly attractive.

But we were earnest amateurs; Harry Turtledove is the real thing, with a Ph.D. in Byzantine history; indeed, I believe him to be the first historian to become a professional practitioner of the organized imagination known as speculative fiction. After years of slaving in the bowels of the Los Angeles city government (a labyrinth powerfully recalling ancient Byzantium), Harry had the pure courage to set off on a career as a free-lance writer, something I have simply never been brave enough to try.

His story here shows off his best facets: meticulous research, incisive imagination and storytelling drive.

A double handful of tourists climbed down from the omnibus, chattering with excitement. From under the long brim of his cap, Radnal vez Krobir looked them over, comparing them with previous groups he'd led through Trench Park. About average, he decided: an old man spending money before he died; younger folks searching for adventure in an over-civilized world; a few who didn't fit into all obvious category and might be artists, writers, researchers, or anything else under the sun.

He looked over the women in the tour group with a different sort of curiosity. He was in the process of buying a bride from her father, but he hadn't done it; legally and morally, he remained a free agent. Some of the women were worth looking over, too: a couple of tall, slim, dark Highheads from the eastern lands who stuck by each other, and another of Radnal's own Strongbrow race —shorter, stockier, fairer, with deep-set light eyes under heavy brow ridges.

One of the Highhead girls gave him a dazzling smile. He smiled back as he walked toward the group, his wool robes flapping around him. "Hello, friends," he called. "Do you all understand Tarteshan? Ah, good."

Cameras clicked as he spoke. He was used to that; people from every tour group wasted pictures on him, though he wasn't what they'd come to see. He went into his usual welcoming speech: "On behalf of the Hereditary Tyranny of Tartesh and the staff of Trench Park, I'm pleased to welcome you here today. If you haven't read my button, or if you just speak Tarteshan but don't know our syllabary, my name is Radnal vez Krobir. I'm a field biologist with the park, doing a two-year stretch of guide duty."

"Stretch?" said the woman who'd smiled at him. "You make it sound like a sentence in the mines."

"I don't mean it like that—quite." He grinned his most disarming grin. Most of the tourists grinned back. A few stayed sober-faced, likely the ones who suspected the gibe was real and the grin put on. There was some truth in that. He knew it, but the tourists weren't supposed to.

He went on, "In a bit, I'll take you over to the donkeys for the trip down into the Trench itself. As you know, we try to keep our mechanical civilization out of the park so we can show you what all the Bottomlands were like not so long ago. You needn't worry. The donkeys are very surefooted. We haven't lost one—or even a tourist—in years."

This time, some of the chuckles that came back were nervous. Probably only a couple of this lot had ever done anything so archaic as getting on the back of an animal. Too bad for the ones just thinking about that now. The rules were clearly stated. The pretty Highhead girls looked particularly upset. The placid donkeys worried them more than the wild beasts of the Trench.

"Let's put off the evil moment as long as we can," Radnal said. "Come under the colonnade for half a daytenth or so and we'll talk about what makes Trench Park unique."

The tour group followed him into the shade. Several people sighed in relief. Radnal had to work to keep his face straight. The Tarteshan sun was warm, but if they had trouble here, they'd cook down in the Trench. That was their lookout. If they got heat-stroke, he'd set them right again. He'd done it before. He pointed to the first illuminated map. "Twenty million years ago, as you'll see, the Bottomlands didn't exist. A long stretch of sea separated what's now the southwest section of the Great Continent from the rest. Notice that what were then two lands masses first joined in the east, and a land bridge rose here." He pointed again, this time more precisely. "This sea, now a long arm of the Western Ocean, remained." He walked over to the next map, drawing the tourists with him. "Things stayed like that until about six and a half million years ago. Then, as that southwest section of the Great Continent kept drifting northward, a new range gradually pushed up here, at the western outlet of that inland sea. When it was cut off from the Western Ocean, it began to dry up: it lost more water by evaporation than flowed into it from its rivers. Now if you'll come along. . . ."

The third map had several overlays, in different shades of blue. "The sea took about a thousand years to turn into the Bottomlands. It refilled from the Western Ocean several times, too, as tectonic forces lowered the Barrier Mountains. But for about the last five and a half million years, the Bottomlands have had about the form we know today."

The last map showed the picture familiar to any child studying geography: the trench of the Bottomlands furrowing across the Great Continent like a surgical scar, requiring colors needed nowhere else on the globe to show relief.

Radnal led the tourists out to the donkey corral. The shaggy animals were already bridled and saddled. Radnal explained how to mount, demonstrated, and waited for the tourists to mess it up. Sure enough, both Highhead girls put the wrong foot in the stirrup.

"No, like this," he said, demonstrating again. "Use your left foot, then swing over." The girl who had smiled at him succeeded on the second try. The other balked. "Help me," she said. Breathing out through his beaky nose in lieu of sighing, Radnal put his hands on her waist and all but lifted her into the saddle as she mounted. She giggled. "You're so strong. He's so strong, Evillia." The other Highhead girl—presumably Evillia—giggled too.

Radnal breathed out again, harder. Tarteshans and other folk of Strongbrow race who lived north of the Bottomlands, and down in them, were stronger than most Highheads, but generally weren't as agile. So what, either way?

He went back to work: "Now that we've learned to mount our donkeys, we're going to learn to dismount." The tourists groaned, but Radnal was inexorable. "You still have to carry your supplies from the omnibus and stow them in the saddlebags. I'm your guide, not your servant." The Tarteshan words carried overtones of I'm your equal, not your slave .

Most of the tourists dismounted, but Evillia stayed up on her donkey. Radnal strode over to her; even his patience was fraying. "This way." He guided her through the necessary motions.

"Thank you, freeman vez Krobir," she said in surprisingly fluent Tarteshan. She turned to her friend.

"You're right. Lofosa; he is strong."

Radnal felt his ears grow hot under their coat of down. A brown-skinned Highhead from south of the Bottomlands rocked his hips back and forth and said, "I'm jealous of you." Several tourists laughed.

"Let's get on with it," Radnal said. "The sooner we get the donkeys loaded, the sooner we can begin and the more we'll see." That line never failed; you didn't become a tourist unless you wanted to see as much as you could. As if on cue, the driver brought the omnibus around to the corral. The baggage doors opened with a hiss of compressed air. The driver started chucking luggage out of the bins.

"You shouldn't have any problems," Radnal said. Everyone's gear had been weighed and measured beforehand, to make sure the donkeys wouldn't have to bear anything too bulky or heavy. Most people easily shifted their belongings to the saddlebags. The two Highhead girls, though, had a night demon of a time making everything fit. He thought about helping them, but decided not to. If they had to pay a penalty for making the supply donkeys carry some of their stuff, it was their own fault. They did get everything in, though their saddlebags bulged like a snake that had just swallowed a half-grown humpless camel. A couple of other people stood around helplessly, with full bags and gear left over. Smiling a smile he hoped was not too predatory, Radnal took them to the scales and collected a tenth of a unit of silver for every unit of excess weight.

"This is an outrage," the dark brown Highhead man said. "Do you know who I am? I am Moblay Sopsirk's son, aide to the Prince of Lissonland." He drew himself up to his full height, almost a Tarteshan cubit more than Radnal's.

"Then you can afford the four and three-tenths," Radnal answered. "I don't keep the silver. It all goes to upkeep for the park."

Grumbling still, Moblay paid. Then he stomped off and swung aboard his animal with more grace than Radnal had noticed him possessing. Down in Lissonland, the guide remembered, important people sometimes rode stripehorses for show. He didn't understand that. He had no interest in getting onto a donkey when he wasn't going down into Trench Park. As long as there were better ways of doing things, why not use them?

Also guilty of overweight baggage were a middle-aged Tarteshan couple. They were overweight themselves, too, but Radnal couldn't do anything about that. Eltsac vez Martois protested, "The scale at home said we were all right."

"If you read it right," Nocso zev Martois said to her husband. "You probably didn't."

"Whose side are you on?" he snarled. She screeched at him. Radnal waited till they ran down, then collected the silver due the park.

When the tourists had remounted their donkeys, the guide walked over to the gate on the far side of the corral, swung it open, and replaced the key in a pouch he wore belted round his waist under his robe. As he went back to his own animal, he said, "When you ride through there, you enter the park itself, and the waivers you signed come into play. Under Tarteshan law, park guides have the authority of military officers within the park. I don't intend to exercise it any more than I have to; we should get along just fine with simple common sense. But I am required to remind you the authority is there." He also kept a repeating handcannon in one of his donkey's saddlebags, but didn't mention that.

"Please stay behind me and try to stay on the trail," he said. "It won't be too steep today; we'll camp tonight at what was the edge of the continental shelf. Tomorrow we'll descend to the bottom of the ancient sea, as far below mean sea level as a medium-sized mountain is above it. That will be more rugged terrain."

The Strongbrow woman said, "It will be hot, too, much hotter than it is now. I visited the park three or four years ago, and it felt like a furnace. Be warned, everyone."

"You're right, freelady, ah—" Radnal said.

"I'm Toglo zev Pamdal." She added hastily, "Only a distant collateral relation, I assure you."

"As you say, freelady." Radnal had trouble keeping his voice steady. The Hereditary Tyrant of Tartesh was Bortav vez Pamdal. Even his distant collateral relations needed to be treated with sandskink gloves. Radnal was glad Toglo had had the courtesy to warn him who she was—or rather, who her distant collateral relation was. At least she didn't seem the sort who would snoop around and take bad reports on people back to the friends she undoubtedly had in high places.

Although the country through which the donkeys ambled was below sea level, it wasn't very far below. It didn't seem much different from the land over which the tourists' omnibus had traveled to reach the edge of Trench Park: dry and scrubby, with thorn bushes and palm trees like long-handled feather dusters. Radnal let the terrain speak for itself, though he did remark, "Dig a couple of hundred cubits under the soil hereabouts and you'll find a layer of salt, same as you would anywhere in the Bottomlands. It's not too thick here on the shelf, because this area dried up quickly, but it's here. That's one of the first clues geologists had that the Bottomlands used to be a sea, and one of the ways they map the boundaries of the ancient water."

Moblay Sopsirk's son wiped his sweaty face with a forearm. Where Radnal, like any Tarteshan, covered up against the heat, Moblay wore only a hat, shoes, and a pocketed belt to carry silver, perhaps a small knife or toothpick, and whatever else he thought he couldn't do without. He was dark enough that he didn't need to worry about skin cancer, but he didn't look very comfortable, either. He said, "Were some of that water back in the Bottomlands, Radnal, Tartesh would have a better climate."

"You're right," Radnal said; he was resigned to foreigners using his familial name with uncouth familiarity.

"We'd be several hundredths cooler in summer and warmer in winter. But if the Barrier Mountains fell again, we'd lose the great area that the Bottomlands encompass and the mineral wealth we derive from them: salt, other chemicals left by evaporation, and the petroleum reserves that wouldn't be accessible through deep water. Tarteshans have grown used to heat over the centuries. We don't mind it."

"I wouldn't go that far," Toglo said. "I don't think it's an accident that Tarteshan air coolers are sold all over the world."

Radnal found himself nodding "You have a point, freelady. What we get from the Bottomlands, though, outweighs fuss over the weather."

As he'd hoped, they got to the campsite with the sun still in the sky, and watched it sink behind the mountains to the west. The tourists gratefully descended from their donkeys and stumped about, complaining of how sore their thighs were. Radnal set them to carrying lumber from the metal racks that lined one side of the site.

He lit the cook fires with squirts from a squeeze bottle of starter fuel and a flint-and-steel lighter. "The lazy man's way," he admitted cheerfully. As with his skill on a donkey, that he could start a fire at all impressed the tourists. He went back to the donkeys, and dug out ration packs which he tossed into the flames. When their tops popped and began to vent steam, he fished them out with a long-handled fork.

"Here we are," he said. "Peel off the foil and you have Tarteshan food—not a banquet fit for the gods, perhaps, but plenty to keep you from starving and meeting them before your time." Evillia read the inscription on the side of her pack. "These are military rations," she said suspiciously. Several people groaned.

Like any other Tarteshan freeman, Radnal had done his required two years in the Hereditary Tyrant's Volunteer Guard. He came to the ration packs' defense: "Like I said, they'll keep you from starving." The packs—mutton and barley stew, with carrots, onions, and a heavy dose of ground pepper and garlic—weren't too bad. The two Martoisi inhaled theirs and asked for more.

"I'm sorry," Radnal said. "The donkeys carry only so many. If I give you another pack each, someone will go hungry before we reach the lodge."

"We're hungry now," Nocso zev Martois said.

"That's right," Eltsac echoed. They stared at each other, perhaps surprised at agreeing.

"I'm sorry," Radnal said again. He'd never had anyone ask for seconds before. Thinking that, he glanced over to see how Toglo zev Pamdal was faring with such basic fare. As his eyes flicked her way, she crumpled her empty pack and got up to throw it in a refuse bin.

She had a lithe walk, though he could tell little of the shape of her body because of her robes. As young—or even not so young—men will, he wandered into fantasy. Suppose he were dickering with her father over bride price instead of with Markaf vez Putun, who acted as if his daughter Wello shat silver and pissed petrol . . .

He had enough sense to recognize when he was being foolish, which is more than the gods grant most. Toglo's father undoubtedly could make a thousand better matches for her than a none-too-special biologist. Confrontation with brute fact didn't stop him from musing, but did keep him from taking himself too seriously.

He smiled as he pulled sleepsacks out of one of the pack donkeys' panniers. The tourists took turns with a foot pump to inflate them. With the weather so warm, a good many tourists chose to lie on top of the sleepsacks rather than crawl into them. Some kept on the clothes they'd been wearing, some had special sleep clothes, and some didn't bother with clothes. Tartesh had a moderately strong nudity taboo; not enough to give Radnal the horrors at naked flesh, but plenty to make him eye Evillia and Lofosa as they carelessly shed shirts and trousers. They were young, attractive, and even well-muscled for Highheads. They seemed more naked to him because their bodies were less hairy than those of Strongbrows. He was relieved his robe hid his full response to them.

Speaking to the group, he said, "Get as much sleep as you can tonight. Don't stay up gabbing. We'll be in the saddle most of the day tomorrow, on worse terrain than we saw today. You'll do better if you're rested."

"Yes, clanfather," Moblay Sopsirk's son said, as a youngster might to the leader of his kith grouping—but any youngster who sounded as sassy as Moblay would get the back of his clanfather's hand across his mouth to remind him not to sound that way again.

But, since Radnal had spoken good sense, most of the tourists did try to go to sleep. They did not know the wilds but, with the possible exception of the Martoisi, they were not fools: few fools accumulated enough silver for an excursion to Trench Park. As he usually did the first night with a new group, Radnal disregarded his own advice. He was good at going without sleep and, being familiar with what lay ahead, would waste no energy on the trip down to the Trench itself.

An owl hooted from a hole in a palm trunk. The air smelled faintly spicy. Sage and lavender, oleander, laurel, thyme—many local plants had leaves that secreted aromatic oils. Their coatings reduced water loss—always of vital importance here—and made the leaves unpalatable to insects and animals. The fading campfires drew moths. Every so often, their glow would briefly light up other, larger shapes: bats and nightjars swooping down to take advantage of the feast set out before them. The tourists took no notice of insects or predators. Their snores rang louder than the owl's cries. After a few trips as tour guide, Radnal was convinced practically everyone snored. He supposed he did, too, though he'd never heard himself do it.

He yawned, lay back on his own sleepsack with hands clasped behind his head, and looked up at the stars, displayed as if on black velvet. There were so many more of them here than in the lights of the big city: yet another reason to work in Trench Park. He watched them slowly whirl overhead; he'd never found a better way to empty his mind and drift toward sleep.

His eyelids were getting heavy when someone rose from his—no, her—sleepsack: Evillia, on her way to the privy shed behind some bushes. His eyes opened wider; in the dim firelight, she looked like a moving statue of polished bronze. As soon as her back was to him, he ran his tongue over his lips. But instead of getting back into her sack when she returned, Evillia squatted by Lofosa's. Both Highhead girls laughed softly. A moment later, they both climbed to their feet and headed Radnal's way. Lust turned to alarm—what were they doing?

They knelt down, one on either side of him. Lofosa whispered, "We think you're a fine chunk of man." Evillia set a hand on the tie of his robe, and began to undo it.

" Both of you?" he blurted. Lust returned, impossible to disguise since he lay on his back. Incredulity came with it. Tarteshan women—even Tarteshan tarts—weren't so brazen (he thought how Evillia had reminded him of smoothly moving bronze); nor were Tarteshan men. Not that Tarteshan men didn't enjoy lewd imaginings, but they usually kept quiet about them.

The Highhead girls shook with more quiet laughter, as if his reserve were the funniest thing imaginable.

"Why not?" Evillia said. "Three can do lots of interesting things two can't."

"But—" Radnal waved to the rest of the tour group. "What if they wake up?" The girls laughed harder; their flesh shifted more alluringly. Lofosa answered, "They'll learn something." Radnal learned quite a few things. One was that, being on the far side of thirty, his nights of keeping more than one woman happy were behind him, though he enjoyed trying. Another was that, what with sensual distractions, trying to make two women happy at once was harder than patting his head with one hand and rubbing his stomach with the other. Still another was that neither Lofosa nor Evillia carried an inhibition anywhere about her person.

He felt himself flagging, knew he'd be limp in more ways than one come morning. "Shall we have mercy on him?" Evillia asked—in Tarteshan, so he could understand her teasing.

"I suppose so," Lofosa said. "This time." She twisted like a snake, brushed her lips against Radnal's.

"Sleep well, freeman." She and Evillia went back to their sleepsacks, leaving him to wonder if he'd dreamed they were with him but too worn to believe it.

This time, his drift toward sleep was more like a dive. But before he yielded, he saw Toglo zev Pamdal come back from the privy. For a moment, that meant nothing But if she was coming back now, she must have gone before, when he was too occupied to notice . . . which meant she must have seen him so occupied.

He hissed like an ocellated lizard, though green wasn't the color he was turning. Toglo got back into her sleepsack without looking either at him or the two Highhead girls. Whatever fantasies he'd had about her shriveled. The best he could hope for come morning was the cool politeness someone of prominence gives an underling of imperfect manners. The worst . . .

What if she starts screaming to the group? he wondered. He supposed he could grit his teeth and carry on. But what if she complains about me to the Hereditary Tyrant? He didn't like the answers he came up with; I'll lose my job was the first that sprang to mind, and they went downhill from there. He wondered why Moblay Sopsirk's son couldn't have got up to empty his bladder. Moblay would have been envious and admiring, not disgusted as Toglo surely was.

Radnal hissed again. Since he couldn't do anything about what he'd already done, he tried telling himself he would have to muddle along and deal with whatever sprang from it. He repeated that to himself several times. It didn't keep him from staying awake most of the night, no matter how tired he was.

The sun woke the tour guide. He heard some of the group already up and stirring. Though still sandy-eyed and clumsy with sleep, he made himself scramble out of his sack. He'd intended to get moving first, as he usually did, but the previous night's exertion and worry overcame the best of intentions.

To cover what he saw as a failing, he tried to move twice as fast as usual, which meant he kept making small, annoying mistakes: tripping over a stone and almost falling, calling the privy the campfire and the campfire the privy, going to a donkey that carried only fodder when he wanted breakfast packs. He finally found the smoked sausages and hard bread. Evillia and Lofosa grinned when they took out the sausages, which flustered him worse. Eltsac vez Martois stole a roll from his wife, who cursed him with a dockwalloper's fluency and more than a dockwalloper's volume.

Then Radnal had to give breakfast to Toglo zev Pamdal. "Thank you, freeman," she said, more at ease than he'd dared hope. Then her gray eyes met his. "I trust you slept well?" It was a conventional Tarteshan morning greeting, or would have been, if she hadn't sounded—no, Radnal decided, she couldn't have sounded amused. "Er—yes," he managed, and fled. He knew only relief at handing the next breakfast to a Strongbrow who put away a sketch pad and charcoal to take it. "Thank you," the fellow said. Though he seemed polite enough, his guttural accent and the striped tunic and trousers he wore proclaimed him a native of Morgaf, the island kingdom off the northern coast of Tartesh—and the Tyranny's frequent foe. Their current twenty-year bout of peace was as long as they'd enjoyed in centuries.

Normally, Radnal would have been cautious around a Morgaffo. But now he found him easier to confront than Toglo. Glancing at the sketch pad, he said, "That's a fine drawing, freeman, ah—" The Morgaffo held out both hands in front of him in his people's greeting. "I am Dokhnor of Kellef, freeman vez Krobir," he said. "Thank you for your interest." He made it sound like stop spying on me . Radnal hadn't meant it that way. With a few deft strokes of his charcoal stick, Dokhnor had picked out the features of the campsite: the fire pits, the oleanders in front of the privy, the tethered donkeys. As a biologist who did field work, Radnal was a fair hand with a piece of charcoal. He wasn't in Dokhnor's class, though. A military engineer couldn't have done better. That thought triggered his suspicions. He looked at the Morgaffo more closely. The fellow carried himself as a soldier would, which proved nothing. Lots of Morgaffos were soldiers. Although far smaller than Tartesh, the island kingdom had always held its own in their struggles. Radnal laughed at himself. If Dokhnor was an agent, why was he in Trench Park instead of, say, at a naval base along the Western Ocean?

The Morgaffo glowered. "If you have finished examining my work, freeman, perhaps you will give someone else a breakfast."

"Certainly," Radnal answered in a voice as icy as he could make it. Dokhnor certainly had the proverbial Morgaffo arrogance. Maybe that proved he wasn't a spy—a real spy would have been smoother. Or maybe a real spy would think no one would expect him to act like a spy, and act like one as a disguise. Radnal realized he could extend the chain to as many links as his imagination could forge. He gave up. When all the breakfast packs were eaten, all the sleepsacks deflated and stowed, the group headed over to remount their donkeys for the trip into Trench Park itself. As he had the night before, Radnal warned,

"The trail will be much steeper today. As long as we take it slow and careful, we'll be fine." No sooner were the words out of his mouth than the ground quivered beneath his feet. Everyone stood stock-still; a couple of people exclaimed in dismay. The birds, on the other hand, all fell silent. Radnal had lived in earthquake country his whole life. He waited for the shaking to stop, and after a few heartbeats it did.

"Nothing to get alarmed at," he said when the quake was over. "This part of Tartesh is seismically active, probably because of the inland sea that dried up so long ago. The crust of the Earth is still adjusting to the weight of so much water being gone. There are a lot of fault lines in the area, some quite close to the surface."

Dokhnor of Kellef stuck up a hand. "What if an earthquake should—how do you say it?—make the Barrier Mountains fall?"

"Then the Bottomlands would flood." Radnal laughed. "Freeman, if it hasn't happened in the last five and a half million years, I won't lose sleep worrying that it'll happen tomorrow, or any time I'm down in Trench Park."

The Morgaffo nodded curtly. "That is a worthy answer. Carry on, freeman." Radnal had an impulse to salute him—he spoke with the same automatic assumption of authority that Tarteshan officers employed. The tour guide mounted his own donkey, waited until his charges were in ragged line behind him. He waved. "Let's go."

The trail down into Trench Park was hacked and blasted from rock that had been on the bottom of the sea. It was only six or eight cubits wide, and frequently switched back and forth. A motor with power to all wheels might have negotiated it, but Radnal wouldn't have wanted to be at the tiller of one that tried. His donkey pulled up a gladiolus and munched it. That made him think of something about which he'd forgotten to warn his group. He said, "When we get lower into the park, you'll want to keep your animals from browsing. The soil down there has large amounts of things like selenium and tellurium along with the more usual minerals—they were concentrated there as the sea evaporated. That doesn't bother a lot of the Bottomlands plants, but it will bother—and maybe kill—your donkeys if they eat the wrong ones."

"How will we know which ones are which?" Eltsac vez Martois called. He fought the urge to throw Eltsac off the trail and let him tumble down into Trench Park. The idiot tourist would probably land on his head, which by all evidence was too hard to be damaged by a fall of a mere few thousand cubits. And Radnal's job was riding herd on idiot tourists. He answered, "Don't let your donkey forage at all. The pack donkeys carry fodder, and there'll be more at the lodge." The tour group rode on in silence for a while. Then Toglo zev Pamdal said, "This trail reminds me of the one down into the big canyon through the western desert in the Empire of Stekia, over on the Double Continent."

Radnal was both glad Toglo would speak to him and jealous of the wealth that let her travel—just a collateral relation of the Hereditary Tyrant's, eh? "I've only seen pictures," he said wistfully. "I suppose there is some similarity of looks, but the canyon was formed differently from the Bottomlands: by erosion, not evaporation."

"Of course," she said. "I've also only seen pictures myself."

"Oh." Maybe she was a distant relative, then. He went on, "Much more like the big canyon are the gorges our rivers cut before they tumble into what was deep sea bottom to form the Bitter Lakes in the deepest parts of the Bottomlands. There's a small one in Trench Park, though it often dries up—the Dalorz River doesn't send down enough water to maintain it very well." A little later, when the trail twisted west around a big limestone boulder, several tourists exclaimed over the misty plume of water plunging toward the floor of the park. Lofosa asked, "Is that the Dalorz?"

"That's it," Radnal said. "Its flow is too erratic to make it worth Tartesh's while to build a power station where it falls off the ancient continental shelf, though we've done that with several other bigger rivers. They supply more than three-fourths of our electricity: another benefit of the Bottomlands." A few small spun-sugar clouds drifted across the sky from west to east. Otherwise, nothing blocked the sun from beating down on the tourists with greater force every cubit they descended. The donkeys kicked up dust at every footfall.

"Does it ever rain here?" Evillia asked.

"Not very often," Radnal admitted. "The Bottomlands desert is one of the driest places on earth. The Barrier Mountains pick off most of the moisture that blows from the Western Ocean, and the other mountain ranges that stretch into the Bottomlands from the north catch most of what's left. But every two or three years Trench Park does get a downpour. It's the most dangerous time to be there—a torrent can tear through a wash and drown you before you know it's coming."

"But it's also the most beautiful time," Toglo zev Pamdal said. "Pictures of Trench Park after a rain first made me want to come here, and I was lucky enough to see it myself on my last visit."

"May I be so fortunate," Dokhnor of Kellef said. "I brought colorsticks as well as charcoal, on the off chance I might be able to draw post-rain foliage."

"The odds are against you, though the freelady was lucky before," Radnal said. Dokhnor spread his hands to show his agreement; like everything he did, the gesture was tight, restrained, perfectly controlled. Radnal had trouble imagining him going into transports of artistic rapture over desert flowers, no matter how rare or brilliant.

He said, "The flowers are beautiful, but they're only the tip of the iceberg, if you'll let me use a wildly inappropriate comparison. All life in Trench Park depends on water, the same as everywhere else. It's adapted to get along with very little, but not none. As soon as any moisture comes, plants and animals try to pack a generation's worth of growth and breeding into the little while it takes to dry up." About a quarter of a daytenth later, a sign set by the side of the trail announced that the tourists were farther below sea level than they could go anywhere outside the Bottomlands. Radnal read it aloud and pointed out, rather smugly, that the salt lake which was the next most submerged spot on dry land lay close to the Bottomlands, and might almost be considered an extension of them. Moblay Sopsirk's son said, "I didn't imagine anyone would be so proud of this wasteland as to want to include more of the Great Continent in it." His brown skin kept him from roasting under the desert sun, but sweat sheened his bare arms and torso.

A little more than halfway down the trail, a wide flat rest area was carved out of the rock. Radnal let the tourists halt for a while, stretch their legs and ease their weary hindquarters, and use the odorous privy. He passed out ration packs, ignored his charges' grumbles. He noticed Dokhnor of Kellef ate his meal without complaint.

He tossed his own pack into the bin by the privy, then, a couple of cubits from the edge of the trail, peered down on to the floor of the Bottomlands. After one of the rare rains, the park was spectacular from here. Now it just baked: white salt pans, gray-brown or yellow-brown dirt, a scattering of faded green vegetation. Not even the area around the lodge was watered artificially; the Tyrant's charter ordained that Trench Park be kept pristine.

As they came off the trail and started along the ancient sea bottom toward the lodge, Evillia said, "I thought it would be as if we were in the bottom of a bowl, with mountains all around us. It doesn't really seem that way. I can see the ones we just came down, and the Barrier Mountains to the west, but there's nothing to the east and hardly anything to the south—just a blur on the horizon."

"I expected it would look like a bowl, too, the first time I came here," Radnal said. "We are in the bottom of a bowl. But it doesn't look that way because the Bottomlands are broad compared to their depth—it's a big, shallow bowl. What makes it interesting is that its top is at the same level as the bottom of most other geological bowls, and its bottom deeper than any of them."

"What are those cracks?" Toglo zev Pamdal asked, pointing down to breaks in the soil that ran across the tour group's path. Some were no wider than a barleycorn; others, like open, lidless mouths, had gaps of a couple of digits between their sides.

"In arid terrain like this you'll see all kinds of cracks in the ground from mud drying unevenly after a rain," Radnal said. "But the ones you've noticed do mark a fault line. The earthquake we felt earlier was probably triggered along this fault: it marks where two plates in the Earth's crust are colliding." Nocso zev Martois let out a frightened squeak. "Do you mean that if we have another earthquake, those cracks will open and swallow us down?" She twitched her donkey's reins, as if to speed it up and get as far away from the fault line as she could.

Radnal didn't laugh; the Tyranny paid him for not laughing at tourists. He answered gravely, "If you worry about something that unlikely, you might as well worry about getting hit by a skystone, too. The one has about as much chance of happening as the other."

"Are you sure ?" Lofosa sounded anxious, too.

"I'm sure." He tried to figure out where she and Evillia were from: probably the Krepalgan Unity, by their accent. Krepalga was the northwesternmost Highhead nation; its western border lay at the eastern edge of the Bottomlands. More to the point, it was earthquake country too. If this was all Lofosa knew about quakes, it didn't say much for her brains.

And if Lofosa didn't have a lot of brains, what did that say about her and Evillia picking Radnal to amuse themselves with? No one cares to think of a sexual partner's judgment as faulty, for that reflects upon him.

Radnal did what any sensible man might have done: he changed the subject. "We'll be at the lodge soon, so you'll want to think about getting your things out of your bags and into your sleep cubicles."

"What I want to think about is getting clean," Moblay Sopsirk's son contradicted.

"You'll each be issued a small bucket of water every day for personal purposes," he said, and overrode a chorus of groans: "Don't complain—our brochures are specific about this. Almost all the fresh water in Trench Park comes down the trail we rode, on the backs of these donkeys. Think how much you'll relish a hot soak when we come out of the park."

"Think how much we'll need a hot soak when we come out of the park," said the elderly Strongbrow man Radnal had tagged as someone spending the silver he'd made in his earlier years (to his embarrassment, he'd forgotten the fellow's name). "It's not so bad for these Highheads here, since their bodies are mostly bare, but all my hair will be a greasy mess by the time this excursion is done." He glared at Radnal as if it were his fault.

Toglo zev Pamdal said, "Don't fret, freeman vez Maprab." Benter vez Maprab, that's who he was, Radnal thought, shooting Toglo a grateful glance. She was still talking to the old Strongbrow: "I have a jar of waterless hair cleaner you can just comb out. It's more than I'd need; I'll share some with you."

"Well, that's kind of you," Benter vez Maprab said, mollified. "Maybe I should have brought some myself."

You certainly should, you old fool, instead of complaining, Radnal thought. He also noted that Toglo had figured out what she'd need before she started her trip. He approved; he would have done the same had he been tourist rather than guide. Of course, if he'd arranged to forget his own waterless hair cleaner, he could have borrowed some from her. He exhaled through his nose. Maybe he'd been too practical for his own good.

Something small and dun-colored darted under his donkey's hooves, then bounced away toward a patch of oleander. "What was that?" several people asked as it vanished among the fallen leaves under the plants.

"It's one of the species of jerboa that live down here," Radnal answered. "Without more than two heartbeats' look, I couldn't tell you which. There are many varieties, all through the Bottomlands. They lived in arid country while the inland sea still existed, and evolved to get the moisture they need from their food. That preadapted them to succeed here, where free water is so scarce."

"Are they dangerous?" Nocso zev Martois asked.

"Only if you're a shrub," Radnal said. "No, actually, that's not quite true. Some eat insects, and one species, the bladetooth, hunts and kills its smaller relatives. It filled the small predator niche before carnivores properly established themselves in the Bottomlands. It's scarce today, especially outside Trench Park, but it is still around, often in the hottest, driest places where no other meat-eaters can thrive."

A little later, the tour guide pointed to a small, nondescript plant with thin, greenish-brown leaves. "Can anyone tell me what that is?"

He asked that question whenever he took a group along the trail, and had only got a right answer once, just after a rain. But now Benter vez Maprab said confidently: "It's a Bottomlands orchid, freeman vez Krobir, and a common type at that. If you'd shown us a red-veined one, that would have been worth fussing over."

"You're right, freeman, it is an orchid. It doesn't look much like the ones you see in more hospitable climates, though, does it?" Radnal said, smiling at the elderly Strongbrow—if he was an orchid fancier, that probably explained why he'd come to Trench Park.

Benter only grunted and scowled in reply—evidently he'd had his heart set on seeing a rare red-veined orchid his first day at the park. Radnal resolved to search his bags at the end of the tour: carrying specimens out of the park was against the law.

A jerboa hopped up, started nibbling on an orchid leaf. Quick as a flash, something darted out from behind the plant, seized the rodent, and ran away. The tourists bombarded Radnal with questions: "Did you see that?" "What was it?" "Where'd it go?"

"That was a koprit bird," he answered. "Fast, wasn't it? It's of the butcherbird family, but mostly adapted to life on the ground. It can fly, but it usually runs. Because birds excrete urea in more or less solid form, not in urine like mammals, they've done well in the Bottomlands." He pointed to the lodge, which was only a few hundred cubits ahead now. "See? There's another koprit bird on the roof, looking around to see what it can catch."

A couple of park attendants came out of the lodge. They waved to Radnal, sized up the tourists, then helped them stable their donkeys. "Take only what you'll need tonight into the lodge," said one, Fer vez Canthal. "Leave the rest in your saddle bags for the trip out tomorrow. The less packing and unpacking, the better."

Some tourists, veteran travelers, nodded at the good advice. Evillia and Lofosa exclaimed as if they'd never heard it before. Frowning at their naïveté, Radnal wanted to look away from them, but they were too pretty.

Moblay Sopsirk's son thought so, too. As the group started from the stable to the lodge, he came up behind Evillia and slipped an arm around her waist. At the same moment, he must have tripped, for his startled cry made Radnal whirl toward them.

Moblay sprawled on the dirt floor of the stable. Evillia staggered, flailed her arms wildly, and fell down on top of him, hard. He shouted again, a shout which lost all its breath as she somehow hit him in the pit of the stomach with an elbow while getting back to her feet.

She looked down at him, the picture of concern. "I'm so sorry," she said. "You startled me." Moblay needed a while before he could sit, let alone stand. At last, he wheezed; "See if I ever touch you again," in a tone that implied it would be her loss.

She stuck her nose in the air. Radnal said, "We should remember we come from different countries and have different customs. Being slow and careful will keep us from embarrassing one another."

"Why, freeman, were you embarrassed last night?" Lofosa asked. Instead of answering, Radnal started to cough. Lofosa and Evillia laughed. Despite what Fer vez Canthal had said, both of them were just toting their saddle bags into the lodge. Maybe they hadn't a lot of brains. But their bodies, those smooth, oh so naked bodies, were something else again.

* * *

The lodge was not luxurious, but boasted mesh screens to keep out the Bottomlands bugs, electric lights, and fans which stirred the desert air even if they did not cool it. It also had a refrigerator. "No ration packs tonight," Radnal said. The tourists cheered.

The cooking pit was outdoors: the lodge was warm enough without a fire inside. Fer vez Canthal and the other attendant, Zosel vez Glesir, filled it with chunks of charcoal, splashed light oil over them, and fired them. Then they put a disjointed lamb carcass on a grill and hung it over the pit. Every so often, one of them basted it with a sauce full of pepper and garlic. The sauce and melting fat dripped onto the coals. They sputtered and hissed and sent up little clouds of fragrant smoke. Spit streamed in Radnal's mouth. The refrigerator also held mead, date wine, grape wine, and ale. Some of the tourists drank boisterously. Dokhnor of Kellef surprised Radnal by taking only chilled water. "I am sworn to the Goddess," he explained.

"Not my affair," Radnal answered, but his sleeping suspicions woke. The Goddess was the deity the Morgaffo military aristocracy most commonly followed. Maybe a traveling artist was among her worshipers, but Radnal did not find it likely.

He did not get much time to dwell on the problem Dokhnor presented. Zosel vez Glesir called him over to do the honors on the lamb. He used a big pair of eating sticks to pick up each piece of meat and transfer it to a paper plate.

The Martoisi ate like starving cave cats. Radnal felt guilty; maybe ordinary rations weren't enough for them. Then he looked at how abundant flesh stretched the fabric of their robes. Guilt evaporated. They weren't wasting away.

Evillia and Lofosa had poured down several mugs of date wine. That soon caused them difficulties. Krepalgans usually ate with knife and skewer; they had trouble manipulating their disposable pairs of wooden eating sticks. After cutting her meat into bite-sized chunks, Lofosa chased them around her plate but couldn't pick them up. Evillia managed that, but dropped them on the way to her mouth. They both seemed cheerful drunks, and laughed at their mishaps. Even stiff-necked Dokhnor unbent far enough to try to show them how to use sticks. His lesson did not do much good, though both Highhead girls moved close enough to him to make Radnal jealous. Evillia said, "You're so deft. Morgaffos must use them every day."

Dokhnor tossed his head in his people's negative. "Our usual tool has prongs, bowl, and a sharp edge, all in one. The Tarteshans say we are a quiet folk because we risk cutting our tongues whenever we open our mouths. But I have traveled in Tartesh, and learned what to do with sticks."

"Let me try again," Evillia said. This time, she dropped the piece of lamb on Dokhnor's thigh. She picked it up with her fingers. After her land lingered on the Morgaffo's leg long enough to give Radnal another pang, she popped the gobbet into her mouth.

Moblay Sopsirk's son began singing in his own language. Radnal did not understand most of the words, but the tune was wild and free and easy to follow. Soon the whole tour group was clapping time. More songs followed. Fer vez Canthal had a ringing baritone. Everyone in the group spoke Tarteshan, but not everyone knew Tartesh's songs well enough to join in. As they had for Moblay, those who could not sing clapped.

When darkness fell, gnats emerged in stinging clouds. Radnal and the group retreated to the lodge, whose screens held the biters away. "Now I know why you wear so many clothes," Moblay said.

"They're armor against insects." The dark brown Highhead looked as if he didn't know where to scratch first.

"Of course," Radnal said, surprised Moblay had taken so long to see the obvious. "If you'll hold still for a couple of heartbeats, we have a spray to take away the itch."

Moblay sighed as Radnal sprayed painkiller onto him. "Anyone want another song?" he called. This time, he got little response. Being under a roof inhibited some people. It reminded others of their long day; Toglo zev Pamdal was not the only tourist to wander off to a sleeping cubicle. Dokhnor of Kellef and old Benter vez Maprab had discovered a war board and were deep in a game. Moblay went over to watch. So did Radnal, who fancied himself a war player.

Dokhnor, who had the blue pieces, advanced a footsoldier over the blank central band that separated his side of the board from his opponent's. "Across the river," Moblay said.

"Is that what Lissonese name the gap?" Radnal said. "With us, it's the trench."

"And in Morgaf, it's the Sleeve, after the channel that separates our islands from Tartesh," Dokhnor said.

"No matter what we call it, though, the game's the same all over the world."

"It's a game that calls for thought and quiet," Benter said pointedly. After some thought, he moved a counselor (that was the name of the piece on the red side of board; its blue equivalent was an elephant) two squares diagonally.

The old Tarteshan's pauses for concentration grew more frequent as the game went on. Dokhnor's attack had the red governor scurrying along the vertical and horizontal lines of his fortress, and his guards along the diagonals, to evade or block the blue pieces. Finally Dokhnor brought one of his cannons in line with the other and said, "That's the end."

Benter glumly nodded. The cannon (the red piece of identical value was called a catapult) was hard to play well: it moved vertically and horizontally, but had to jump over one other piece every time. Thus the rear cannon, not the front, threatened the red governor. But if Benter interposed a guard or one of his chariots, that turned the forward cannon into the threat.

"Nicely played," Benter said. He got up from the war table, headed for a cubicle.

"Care for a game, either of you?" Dokhnor asked the spectators.

Moblay Sopsirk's son shook his head. Radnal said, "I did, till I saw you play. I don't mind facing someone better than I am if I have some chance. Even when I lose, I learn something. But you'd just trounce me, and a little of that goes a long way."

"As you will." Dokhnor folded the war board, poured the disks into their bag. He replaced bag and board on their shelf. "I'm for bed, then." He marched off to the cubicle he'd chosen. Radnal and Moblay glanced at each other, then toward the war set. By unspoken consent, they seemed to decide that if neither of them wanted a go at Dokhnor of Kellef, playing each other would be rude.

"Another night," Radnal said.

"Fair enough." Moblay yawned, displaying teeth that gleamed all the whiter against his brown skin. He said, "I'm about done over—no, it's 'done in' in Tarteshan, isn't it?—anyhow. See you in the morning, Radnal."

Again the tour guide controlled his annoyance at Moblay's failure to use the polite particle vez . At first when foreigners forgot that trick of Tarteshan grammar, he'd imagined himself deliberately insulted. Now he knew better, though he still noticed the omission.

A small light came on in Dokhnor's cubicle: a battery-powered reading lamp. The Morgaffo wasn't reading, though. He sat with his behind on the sleeping mat and his back against the wall. His sketch pad lay on his bent knees. Radnal heard the faint skritch-skritch of charcoal on paper.

"What's he doing?" Fer vez Canthal whispered. A generation's peace was not enough time to teach most Tarteshans to trust their island neighbors.

"He's drawing," Radnal answered, as quietly. Neither of them wanted to draw Dokhnor's notice. The reply could have come out sounding innocent. It didn't. Radnal went on, "His travel documents say he's an artist." Again, tone spoke volumes.

Zosel vez Glesir said, "If he really were a spy, Radnal vez, he'd carry a camera; not a sketch pad. Everyone carries a camera into Trench Park—he wouldn't even get noticed."

"True," Radnal said. "But he doesn't act like an artist. He acts like a member of the Morgaffo officer caste. You heard him—he's sworn to their Goddess."

Fer vez Canthal said something lewd about the Morgaffo Goddess. But he lowered his voice even further before he did. An officer from Morgaf who heard his deity offended might make formal challenge. Then again, in Tartesh, where dueling was illegal, he might simply commit murder. The only thing certain was that he wouldn't ignore the insult.

"We can't do anything to him—or even about him—unless we find out he is spying," Zosel vez Glesir said.

"Yes," Radnal said. "The last thing Tartesh wants is to hand Morgaf an incident." He thought about what would happen to someone who fouled up so gloriously. Nothing good, that was sure. Then something else occurred to him. "Speaking of the Tyrant, do you know who's in this group? Freelady Toglo zev Pamdal, that's who."

Zosel and Fer whistled softly. "Good thing you warned us," Zosel said. "We'll stay round her like cotton round cut glass."

"I don't think she cares for that sort of thing," Radnal said. "Treat her well, yes, but don't fall all over yourselves."

Zosel nodded. Fer still had Dokhnor of Kellef on his mind. "If he is a spy, what's he doing in Trench Park instead of somewhere important?"

"l thought of that myself," Radnal said. "Cover, maybe. And who knows where he's going after he leaves?"

"I know where I'm going," Zosel said, yawning: "To bed. If you want to stay up all night fretting about spies, go ahead."

"No, thanks," Fer answered. "A spy would have to be crazy or on holiday to come to Trench Park. If he's crazy, we don't have to worry about him, and if he's on holiday, we don't have to worry about him then, either. So I'm going to bed, too."

"If you think I'll stay talking to myself, you're both crazy," Radnal said. All three Tarteshans got up. Dokhnor of Kellef's reading lamp went out, plunging his cubicle into blackness. Radnal dimmed the lights in the common room.

He flopped down onto his sleeping mat with a long sigh. He would sooner have been out in the field, curled up in a sleepsack under gnat netting. This was the price he paid for doing what he wanted most of the time. He knew his own snores would soon join the tourists'.

Then two female shapes appeared in the entrance to his cubicle. By the gods, not again , he thought as his eyes opened wide, which showed how tired he was. He said, "Don't you believe in sleep?" Evillia laughed softly, or maybe Lofosa. "Not when there are better things to do," Lofosa said. "We have some new ideas, too. But we can always see who else is awake."

Radnal almost told her to go ahead, and take Evillia with her. But he heard himself say, "No," instead. The night before had been educational beyond his dreams, the stuff people imagined when they talked about the fringe benefits of a tour guide's job. Until last night, he'd reckoned those stories imaginary: in his two years as a guide, he'd never cavorted with a tourist before. Now . . . he grinned as he felt himself rising to the occasion.

The Highhead girls came in. As they'd promised, the threesome tried some new things. He wondered how long their inventiveness could last, and if he could last as long. He was sure he'd enjoy trying. His stamina and the girls' ingenuity flagged together. He remembered them getting up from the mat. He thought he remembered them going out into the common room. He was sure he didn't remember anything after that. He slept like a log from a petrified forest.

When the scream jarred him awake, his first muzzy thought was that only a few heartbeats had passed. But a glance at his pocket clock as he closed his robe told him sunrise was near. He dashed out into the common room.

Several tourists were already out there, some dressed, some not. More emerged every moment, as did the other two Trench Park staffers. Everyone kept saying, "What's going on?" Though no one directly answered the question, no one needed to. As naked as when she'd frolicked with Radnal, Evillia stood by the table where Benter vez Maprab and Dokhnor of Kellef had played war. Dokhnor was there, too, but not standing. He lay sprawled on the floor, head twisted at an unnatural angle.

Evillia had jammed a fist in her mouth to stifle another scream. She took it out, quavered, "Is—is he dead?"

Radnal strode over to Dokhnor, grabbed his wrist, felt for a pulse. He found none, nor was the Morgaffo breathing. "He's dead, all right," Radnal said grimly.

Evillia moaned. Her knees buckled. She toppled onto Radnal's bent back.

When Evillia fainted, Lofosa screamed and ran forward to try to help. Nocso zev Martois screamed, too, even louder. Moblay Sopsirk's son hurried toward Radnal with Evillia. So did Fer vez Canthal and Zosel vez Glesir. So did Toglo zev Pamdal. So did another tourist, a Highhead who'd spoken very little on the way down to the lodge.

Everyone got in everyone else's way. Then the quiet Highhead stopped being quiet and shouted, "I am a physician, the six million gods curse you! Let me through!"

"Let the physician through," Radnal echoed, sliding Evillia off him and to the ground as gently as he could. "Check her first, freeman Golobol," he added, pleased he'd hung onto the doctor's name. "I'm afraid you're too late to help Dokhnor now."

Golobol was almost as dark as Moblay, but spoke Tarteshan with a different accent. As he turned to Evillia, she moaned and stirred. "She will be all right, oh yes, I am sure," he said. "But this poor fellow—" As Radnal had, he felt for Dokhnor's pulse. As Radnal had, he failed to find it. "You are correct, sir. This man is dead. He has been dead for some time."

"How do you know?" Radnal asked.

"You felt of him, not?" the physician said. "Surely you noticed his flesh has begun to cool. It has, oh yes." Thinking back, Radnal had noticed, but he'd paid no special attention. He'd always prided himself on how well he'd learned first aid training. But he wasn't a physician, and didn't automatically take everything into account as a physician would. His fit of chagrin was interrupted when Evillia let out a shriek a hunting cave cat would have been proud of.

Lofosa bent by her, spoke to her in her own language. The shriek cut off. Radnal started thinking about what to do next. Golobol said, "Sir, look here, if you would."

Golobol was pointing to a spot on the back of Dokhnor's neck, right above where it bent gruesomely. Radnal had to say, "I don't see anything."

"You Strongbrows are a hairy, folk, that is why," Golobol said. "Here, though—see this, ah, discoloration, is that the word in your language? It is? Good. Yes. This discoloration is the sort of mark to be expected from a blow by the side of the hand, a killing blow."

Despite Bottomlands's heat, ice formed in the pit of Radnal's stomach. "You're telling me this was murder."

The word cut through the babble filling the common room like a scalpel. There was chaos one heartbeat, silence the next. Into that abrupt, intense silence, Golobol said, "Yes."

"Oh, by the gods, what a mess," Fer vez Canthal said.

Figuring out what to do next became a lot more urgent for Radnal. Why had the gods (though he didn't believe in six million of them) let someone from his tour group get murdered? And why, by all the gods he did believe in, did it have to be the Morgaffo? Morgaf would be suspicious—if not hostile—if any of its people met foul play in Tartesh. And if Dokhnor of Kellef really was a spy, Morgaf would be more than suspicious. Morgaf would be furious.

Radnal walked over to the radiophone. "Whom will you call?" Fer asked.

"First, the park militia. They'd have to be notified in any case. And then—" Radnal took a deep breath.

"Then I think I'd best call the Hereditary Tyrant's Eyes and Ears in Tarteshem. Murder of a Morgaffo sworn to the Goddess is a deeper matter than the militia can handle alone. Besides, I'd sooner have an Eye and Ear notify the Morgaffo plenipo than try doing it myself."

"Yes, I can see that," Fer said. "Wouldn't want Morgaffo gunboats running across the Sleeve to raid our coasts because you said something wrong Or—" The lodge attendant shook his head. "No, not even the island king would be crazy enough to start tossing starbombs over something this small." Fer's voice turned anxious. "Would he?"

"I don't think so." But Radnal sounded anxious, too. Politics hadn't been the same since starbombs came along fifty years before. Neither Tartesh nor Morgaf had used them, even in war against each other, but both countries kept building them. So did eight or ten other nations, scattered across the globe. If another big war started, it could easily become The Big War, the one everybody was afraid of. Radnal punched buttons on the radiophone. After a couple of static bursts, a voice answered: "Trench Park militia, Subleader vez Steries speaking."

"Gods bless you, Liem vez," Radnal said; this was a man he knew and liked. "Vez Krobir here, over at the tourist lodge. I'm sorry to have to tell you we've had a death. I'm even sorrier to have to tell you it looks like murder." Radnal explained what had happened to Dokhnor of Kellef. Liem vez Steries said, "Why couldn't it have been anyone else but the Morgaffo? Now you'll have to drag in the Eyes and Ears, and the gods only know how much hoorah will erupt."

"My next call was to Tarteshem," Radnal agreed.

"It probably should have been your first one, but never mind," Liem vez Steries said. "I'll be over there with a circumstances man as fast as I can get a helo in the air. Farewell."

"Farewell." Radnal's next call had to go through a human relayer. After a couple of hundred heartbeats, he found himself talking with an Eye and Ear named Peggol vez Menk. Unlike the park militiaman, Peggol kept interrupting with questions, so the conversation took twice as long as the other one had. When Radnal was through, the Eye and Ear said, "You did right to involve us, freeman vez Krobir. We'll handle the diplomatic aspects, and we'll fly a team down there to help with the investigation. Don't let anyone leave the—lodge, did you call it? Farewell."

The radiophone had a speaking diaphragm in the console, not the more common—and more private—ear-and-mouth handset. Everyone heard what Peggol vez Menk said. Nobody liked it. Evillia said, "Did he mean we're going to have to stay cooped up here—with a murderer?" She started trembling. Lofosa put an arm around her.

Benter vez Maprab had a different objection: "See here, freeman, I put down good silver for a tour of Trench Park, and I intend to have that tour. If not, I shall take legal measures." Radnal stifled a groan. Tarteshan law, which relied heavily on the principle of trust, came down hard on those who violated contracts in any way. If the old Strongbrow went to court, he'd likely collect enormous damages from Trench Park—and from Radnal, as the individual who failed to deliver the service contracted for.

Worse, the Martoisi joined the outcry. A reasonably upright and upstanding man, Radnal had never had to hire a pleader in his life. He wondered if he had enough silver to pay for a good one. Then he wondered if he'd ever have any silver again, once the tourists, the courts, and the pleader were through with him.

Toglo zev Pamdal cut through the hubbub: "Let's wait a few heartbeats. A man is dead. That's more important than everything else. If the start of our tour is delayed, perhaps Trench Park will regain equity by delaying its end to give us the full touring time we've paid for."

"That's an excellent suggestion, freelady zev Pamdal," Radnal said gratefully. Fer and Zosel nodded. A distant thunder in the sky grew to a roar. The militia helo kicked up a small dust storm as it set down between the stables and the lodge. Flying pebbles clicked off walls and windows. The motor shut down. As the blades slowed, dust subsided.

Radnal felt as if a good god had frightened a night demon from his shoulders. "I don't think we'll need to extend your time here by more than a day," he said happily.

"How will you manage that, if we're confined here in this gods-forsaken wilderness?" Eltsac vez Martois growled.

"That's just it," Radnal said. "We are in a wilderness. Suppose we go out and see what there is to see in Trench Park—where will the culprit flee on donkeyback? If he tries to get away, we'll know who he is because he'll be the only one missing, and we'll track him down with the helo." The tour guide beamed. The tourists beamed back—including, Radnal reminded himself, the killer among them. Liem vez Steries and two other park militiamen walked into the lodge. They wore soldierly versions of Radnal's costume: their robes, instead of being white, were splotched in shades of tan and light green, as were their long-brimmed caps. Their rank badges were dull; even the metal buckles of their sandals were painted to avoid reflections.

Liem set a recorder on the table Dokhnor and Benter vez Maprab had used for war the night before. The circumstances man started taking pictures with as much abandon as if he'd been a tourist. He asked,

"Has the body been moved?"

"Only as much as we needed to make sure the man was dead," Radnal answered.

"We?" the circumstances man asked. Radnal introduced Golobol. Liem got everybody's statement on the wire: first Evillia, who gulped and blinked back tears as she spoke, then Radnal, then the physician, and then the other tourists and lodge attendants. Most of them echoed one another: they'd heard a scream, run out, and seen Evillia standing over Dokhnor's corpse.

Golobol added, "The woman cannot be responsible for his death. He had been deceased some while, between one and two daytenths, possibly. She, unfortunate one, merely discovered the body."

"I understand, freeman," Liem vez Steries assured him. "But because she did, her account of what happened is important."

* * *

The militiaman had just finished recording the last statement when another helo landed outside the lodge. The instant its dust storm subsided, four men came in. The Hereditary Tyrant's Eyes and Ears looked more like prosperous merchants than soldiers: their caps had patent-leather brims, they closed their robes with silver chains, and they sported rings on each index finger.

"I am Peggol vez Menk," one of them announced. He was short and, by Tarteshan standards, slim; he wore his cap at a dapper angle. His eyes were extraordinarily shrewd, as if he were waiting for someone around him to make a mistake. He spotted Liem vez Steries at once, and asked, "What's been done thus far, Subleader?"

"What you'd expect," the militiaman answered: "Statements from all present, and our circumstances man, Senior Trooper vez Sofana there, has taken some pictures. We didn't disturb the body."

"Fair enough," the Eye and Ear said. One of his men was flashing more photos. Another set a recorder beside the one already on the table. "We'll get a copy of your wire, and we'll make one for ourselves—maybe we'll find questions you missed. You haven't searched belongings yet?"

"No, freeman." Liem vez Steries's voice went wooden. Radnal wouldn't have wanted someone to steal and duplicate his work, either. Eyes and Ears, though, did as they pleased. Why not? They watched Tartesh, but who watched them?

"We'll take care of it." Peggol vez Menk sat down at the table. The photographer stuck in a fresh clip of film, then followed the two remaining Eyes and Ears into the sleeping cubicle nearest the entrance. It was Golobol's. "Be careful, oh please I beg you," the physician exclaimed. "Some of my equipment is delicate."

Peggol said, "I'll hear the tale of the woman who discovered the body." He pulled out a notepad, glanced at it. "Evillia." A little calmer now, Evillia retold her story using, so far as Radnal could tell, the same words she had before. If Peggol found any new questions, he didn't ask them. After about a tenth of a daytenth, it was Radnal's turn. Peggol did remember his name without needing to remind himself. Again, his questions were like the ones Liem vez Steries had used. When he asked the last one, Radnal had a question of his own: "Freeman, while the investigation continues, may I take my group out into the Bottomlands?" He explained how Benter vez Maprab had threatened to sue, and why he thought even a guilty tourist unlikely to escape.

The Eye and Ear pulled at his lower lip. He let the hair beneath it grow out in a tuft, which made him seem to have a protruding chin like a Highhead's. When he released the lip, it went back with a liquid plop. Under his tilted cap, he looked wise and cynical. Radnal's hopes plunged. He waited for Peggol to laugh at him for raising the matter.

Peggol said, "Freeman, I know you technically enjoy military rank, but suppose you discover who the killer is, or he strikes again. Do you reckon yourself up to catching him and bringing him back for trial and decapitation?"

"I—" Radnal stopped before he went any further. The ironic question reminded him this wasn't a game. Dokhnor of Kellef might have been a spy, he was dead now, and whoever had killed him might kill again— might kill me, if I find out who he is, he thought. He said, "I don't know. I'd like to think so, but I've never had to do that sort of thing."

Something like approval came into Peggol vez Menk's eyes. "You're honest with yourself. Not everyone can say that. Hmm—it wouldn't be just your silver involved in a suit, would it? No, of course not; it would be Trench Park's, too, which means the Hereditary Tyrant's."

"Just what I was thinking," Radnal said, with luck patriotically. His own silver came first with him. He was honest enough with himself to be sure of that—but he didn't have to tell it to Peggol.

"I'm sure you were," the Eye and Ear said, his tone dry. "The Tyrant's silver really does come first with me. How's this, then? Suppose you take the tourists out, as you've contracted to do. But suppose I come with you to investigate while my comrades keep working here? Does that seem reasonable?"

"Yes, freeman; thank you," Radnal exclaimed.

"Good," Peggol said. "My concubine has been nagging me to bring her here. Now I'll see if I want to do that." He grinned knowingly. "You see, I also keep my own interests in mind." The other Eyes and Ears had methodically gone from one sleeping cubicle to the next, examining the tourists' belongings. One of them brought a codex out of Lofosa's cubicle, dropped it on the table in front of Peggol vez Menk. The cover was a color photo of two good-looking Highheads fornicating. Peggol flipped through it. Variations on the same theme filled every page.

"Amusing," he said, "even if it should have been seized when its owner entered our domains."

"I like that!" Lofosa sounded indignant. "You sanctimonious Strongbrows, pretending you don't do the same things—and enjoy them, too. I ought to know."

Radnal hoped Peggol would not ask how she knew. He was certain she would tell him, in detail; she and Evillia might have been many things, but not shy. But Peggol said, "We did not come here to search for filth. She might have worn out Dokhnor with that volume, but she didn't kill him with it. Let her keep it, if she enjoys telling the world what should be kept private."

"Oh, rubbish!" Lofosa scooped up the codex and carried it back to her cubicle, rolling her hips at every step as if to contradict Peggol without another word.

The Eyes and Ears brought out nothing more from her sleep cubicle or Evillia's for their chief to inspect. That surprised Radnal; the two women had carried in everything but the donkey they'd ridden. He shrugged—they'd probably filled their saddlebags with feminine fripperies and junk that could have stayed behind in their Tarteshan hostel if not in Krepalga.

Then he stopped thinking about them—the Eye and Ear who'd gone into Dokhnor's cubicle whistled. Peggol vez Menk dashed in there. He came out with his fist tightly closed around something. He opened it. Radnal saw two six-pointed gold stars: Morgaffo rank badges.

"So he was a spy," Fer vez Canthal exclaimed.

"He may have been," Peggol said. But when he got on the radio to Tarteshem, he found Dokhnor of Kellef had declared his battalion leader's rank when he entered the Tyranny. The Eye and Ear scowled.

"A soldier, yes, but not a spy after all, it would appear."

Benter vez Maprab broke in "I wish you'd finish your pawing and let us get on with our tour. I haven't many days left, so I hate to squander one."

"Peace, freeman," Peggol said. "A man is dead."

"Which means he'll not complain if I see the much talked about wonders of Trench Park." Benter glared as if he were the Hereditary Tyrant dressing down some churlish underling.

Radnal, seeing how Benter reacted when thwarted, wondered if he'd broken Dokhnor's neck for no better reason than losing a game of war. Benter might be old, but he wasn't feeble. And he was sure to be a veteran of the last war with Morgaf, or the one before that against Morgaf and the Krepalgan Unity both. He would know how to kill.

Radnal shook his head. If things kept on like this, he'd start suspecting Fer and Zosel next, or his own shadow. He wished he hadn't lost the tour guides' draw. He would sooner have been studying the metabolism of the fat sand rat than trying to figure out which of his charges had just committed murder. Peggol vez Menk said, "We shall have to search the outbuildings before we begin. Freeman vez Krobir already told you we'd go out tomorrow. My professional opinion is that no court would sustain a suit over one day's delay when compensational time is guaranteed."

"Bah!" Benter stomped off. Radnal caught Toglo zev Pamdal's eye. She raised one eyebrow slightly, shook her head. He shifted his shoulders in a tiny shrug. They both smiled. In every group, someone turned out to be a pain in the backside. Radnal let his smile expand, glad Toglo wasn't holding his sport with Lofosa and Evillia against him.

"Speaking of outbuildings, freeman vez Krobir," Peggol said, "there's just the stables, am I right?"

"That and the privy, yes," Radnal said.

"Oh, yes, the privy." The Eye and Ear wrinkled his nose. It was even more prominent than Radnal's. Most Strongbrows had big noses, as if to counterbalance their long skulls. Lissonese, whose noses were usually flattish, sometimes called Tarteshans Snouts on account of that. The name would start a brawl in any port on the Western Ocean.

Fer vez Canthal accompanied one of Peggol's men to the stables; the Eye and Ear obviously needed support against the ferocious, blood-crazed donkeys inside—that was what his body language said, anyhow. When Peggol ordered him out, he'd flinched as if told to invade Morgaf and bring back the king's ears.

"You Eyes and Ears don't often deal with matters outside the big cities, do you?" Radnal asked.

"You noticed that?" Peggol vez Menk raised a wry eyebrow. "You're right; we're urbanites to the core. Threats to the realm usually come among crowds of masking people. Most that don't are a matter for the army, not us."

Moblay Sopsirk's son went over to the shelf where the war board was stored. "If we can't go out today, Radnal, care for the game we didn't have last night?"

"Maybe another time, freeman vez Sopsirk," the tour guide said, turning Moblay's name into its nearest Tarteshan equivalent. Maybe the brown man would take the hint and speak a bit more formally to him. But Moblay didn't seem good at catching hints, as witness his advances toward Evillia and this even more poorly timed suggestion of a game.

The Eye and Ear returned from the stable without the solution to Dokhnor's death. By his low-voiced comments to his friends, he was glad he'd escaped the den of vicious beasts with his life. The Trench Park staffers tried to hide their sniggers. Even a few of the tourists, only two days better acquainted with donkeys than the Eye and Ear, chuckled at his alarm.

Something on the roof said hig-hig-hig! in a loud, strident voice. The Eye and Ear who'd braved the stables started nervously. Peggol vez Menk raised his eyebrow again. "What's that, freeman vez Krobir?"

"A koprit bird," Radnal said. "They hardly ever impale people on thorn bushes."

"No, eh? That's good to hear." Peggol's dry cough served him for a laugh. The midday meal was ration packs. Radnal sent Liem vez Steries a worried look: the extra mouths at the lodge would make supplies run out faster than he'd planned for. Understanding the look, Liem said,

"We'll fly in more from the militia outpost if we have to."

"Good."

Between them, Peggol vez Menk and Liem vez Steries spent most of the afternoon on the radiophone. Radnal worried about power, but not as much. Even if the generator ran out of fuel, solar cells would take up most of the slack. Trench Park had plenty of sunshine.

After supper, the militiamen and Eyes and Ears scattered sleepsacks on the common room floor. Peggol set up a watch schedule that gave each of his and Liem's men about half a daytenth each. Radnal volunteered to stand a watch himself.

"No," Peggol answered. "While I do not doubt your innocence, freeman vez Krobir, you and your colleagues formally remain under suspicion here. The Morgaffo plenipo could protest were you given a post which might let you somehow take advantage of us."

Though that made some sense, it miffed Radnal. He retired to his sleeping cubicle in medium dudgeon, lay down, and discovered he could not sleep. The last two nights, he'd been on the edge of dropping off when Evillia and Lofosa called. Now he was awake, and they stayed away.

He wondered why. They'd already shown they didn't care who watched them when they made love. Maybe they thought he was too shy to do anything with militiamen and Eyes and Ears outside the entrance. A few days before, they would have been right. Now he wondered. They took fornication so much for granted that they made any other view of it seem foolish.

Whatever their reasons, they stayed away. Radnal tossed and turned on his sleepsack. He thought about going out to chat with the fellow on watch, but decided not to: Peggol vez Menk would suspect he was up to something nefarious if he tried. That annoyed him all over again, and drove sleep further away than ever. So did the Martoisi's furious row over how one of them—Eltsac said Nocso, Nocso said Eltsac—had managed to lose their only currycomb.

The tour guide eventually dozed off, for he woke with a start when the men in the common room turned up the lights just before sunrise. For a heartbeat or two, he wondered why they were there. Then he remembered.

Yawning, he grabbed his cap, tied the belt on his robe, and headed out of the cubicle. Zosel vez Glesir and a couple of tourists were already in the common room, talking with the militiamen and the Eyes and Ears. Conversation flagged when Lofosa emerged from her sleeping cubicle without dressing first.

"A tough job, this tour guide business must be," Peggol vez Menk said, sounding like everyone else who thought a guide did nothing but roll on the sleepsack with his tourists.

Radnal grunted. This tour, he hadn't done much with Lofosa or Evillia but roll on the sleepsack. It's not usually like that , he wanted to say. He didn't think Peggol would believe him, so he kept his mouth shut. If an Eye and Ear didn't believe something, he'd start digging. If he started to dig, he'd keep digging till he found what he was looking for, regardless of whether it was really there. The tour guide and Zosel dug out breakfast packs. By the time they came back, everyone was up, and Evillia had succeeded in distracting some of the males from Lofosa. "Here you are, freelady," Radnal said to Toglo zev Pamdal when he got to her.

No one paid her any particular attention; she was just a Tarteshan woman in a concealing Tarteshan robe, not a foreign doxy wearing nothing much. Radnal wondered if that irked her. Women, in his experience, did not like being ignored.

If she was irked, she didn't show it. "I trust you slept well, freeman vez Krobir?" she said. She did not even glance toward Evillia and Lofosa. If she meant anything more by her greeting than its words, she also gave no sign of that—which suited Radnal perfectly.

"Yes. I trust you did likewise," he answered.

"Well enough," she said, "though not as well as I did before the Morgaffo was killed. A pity he'll not be able to make his sketches—he had talent. May his Goddess grant him wind and land and water in the world to come. That's what the islanders pray for, not so?"

"I believe so, yes," Radnal said, though he knew little of Morgaffo religious forms.

"I'm glad you've arranged for the tour to continue despite the misfortune that befell him, Radnal vez," she said. "It can do him no harm, and the Bottomlands are fascinating."

"So they are, fr—" Radnal began. Then he stopped, stared, and blinked. Toglo hadn't used formal address, but the middle grade of Tarteshan politesse, which implied she felt she knew him somewhat and didn't disapprove of him. Considering what she'd witnessed at the first night's campsite, that was a minor miracle. He grinned and took a like privilege: "So do I, Toglo zev." About a tenth of a daytenth later, as he and Fer carried empty ration packs to the disposal bin, the other Trench Park staffer elbowed him in the ribs and said, "You have all the women after you eh, Radnal vez?" Radnal elbowed back, harder. "Go jump in the Bitter Lake, Fer vez. This group's nothing but trouble. Besides, Nocso zev Martois thinks I'm part of the furniture."

"You wouldn't want her," Fer replied, chuckling. "I was just jealous."

"That's what Moblay said," Radnal answered. Having anyone jealous of him for being sexually attractive was a new notion, one he didn't care for. By Tarteshan standards, drawing such notice was faintly disreputable, as if he'd got rich by skirting the law. It didn't bother Evillia and Lofosa—they reveled in it. Well , he asked himself, do you really want to be like Evillia and Lofosa, no matter how ripe their bodies are? He snorted through his nose. "Let's go back inside, so I can get my crew moving." After two days of practice, the tourists thought they were seasoned riders. They bounded onto their donkeys, and had little trouble guiding them out of their stalls. Peggol vez Menk looked almost as apprehensive as his henchman who'd gone to search the stable. He drew in his white robe all around him, as if fearing to have it soiled. "You expect me to ride one of these creatures?" he said.

"You were the one who wanted to come along," Radnal answered. "You don't have to ride; you could always hike along beside us."

Peggol glared. "Thank you, no, freeman vez Krobir." He pointedly did not say Radnal vez . "Will you be good enough to show me how to ascend one of these perambulating peaks?"

"Certainly, freeman vez Menk." Radnal mounted a donkey, dismounted, got on again. The donkey gave him a jaundiced stare, as if asking him to make up his mind. He dismounted once more, and took the snort that followed as the asinine equivalent of a resigned shrug. To Peggol, he said, "Now you try, freeman."

Unlike Evillia or Lofosa, the Eye and Ear managed to imitate Radnal's movements without requiring the tour guide to take him by the waist (just as well, Radnal thought—Peggol wasn't smooth and supple like the Highhead girls). He said, "When back in Tarteshem, freeman vez Krobir, I shall stick exclusively to motors."

"When I'm in Tarteshem, freeman vez Menk, I do the same," Radnal answered. The party set out a daytenth after sunrise: not as early as Radnal would have liked but, given the previous day's distractions, the best he could expect. He led them south, toward the lowlands at the core of Trench Park. Under his straw hat, Moblay Sopsirk's son was already sweating hard. Something skittered into hiding under the fleshy leaves of a desert spurge. "What did we just nearly see there, freeman?" Golobol asked.

Radnal smiled at the physician's phrasing. "That was a fat sand rat. It's a member of the gerbil family, one specially adapted to feed off succulent plants that concentrate salt in their foliage. Fat sand rats are common throughout the Bottomlands. They're pests in areas where there's enough water for irrigated agriculture."

Moblay said, "You sound like you know a lot about them, Radnal."

"Not as much as I'd like to, freeman vez Sopsirk," Radnal answered, still trying to persuade the Lissonese to stop being so uncouthly familiar. "I study them when I'm not being a tour guide."

"I hate all kinds of rats," Nocso zev Martois said flatly.

"Oh, I don't know," Eltsac said. "Some rats are kind of cute." The two Martoisi began to argue. Everyone else ignored them.

Moblay said, "Hmp. Fancy spending all your time studying rats."

"And how do you make your livelihood, freeman?" Radnal snapped.

"Me?" Flat-nosed, dark, and smooth, Moblay's face was different from Radnal's in every way. But the tour guide recognized the blank mask that appeared on it for a heartbeat: the expression of a man with something to hide. Moblay said, "As I told you, I am aide to my prince, may his years be many." He had said that, Radnal remembered. It might even be true, but he was suddenly convinced it wasn't the whole truth.

Benter vez Maprab couldn't have cared less about the fat sand rat. The spiny spurge under which it hid, however, interested him. He said, "Freeman vez Krobir, perhaps you will explain the relationship between the plants here and the cactuses in the deserts of the Double Continent."

"There is no relationship to speak of." Radnal gave the old Strongbrow an unfriendly look. Try to make me look bad in front of everyone, will you? he thought. He went on, "The resemblances come from adapting to similar environments. That's called convergent evolution. As soon as you cut them open, you'll see they're unrelated: spurges have a thick white milky sap, while that of cactuses is clear and watery. Whales and fish look very much alike, too, but that's because they both live in the sea, not because they're kin."

Benter hunched low over his donkey's back. Radnal felt like preening, as if he'd overcome a squadron of Morgaffo marine commandos rather than one querulous old Tarteshan.

Some of the spines of the desert spurge held a jerboa, a couple of grasshoppers, a shoveler skink, and other small, dead creatures. "Who hung them out to dry?" Peggol vez Menk asked.

"A koprit bird," Radnal answered. "Most butcherbirds make a larder of things they've caught but haven't got round to eating yet."

"Oh." Peggol sounded disappointed. Maybe he'd hoped someone in Trench Park enjoyed tormenting animals, so he could hunt down the miscreant.

Toglo zev Pamdal pointed to the impaled lizard, which looked to have spent a while in the sun. "Do they eat things as dried up as that, Radnal vez?"

"No, probably not," Radnal said. "At least, I wouldn't want to." After he got his small laugh, he continued, "A koprit bird's larder isn't just things it intends to eat. It's also a display to other koprit birds. That's especially true in breeding season—it's as if the male says to prospective mates, 'Look what a hunter I am.' Koprits don't display only live things they've caught, either. I've seen hoards with bright bits of yarn, wires, pieces of sparkling plastic, and once even a set of old false teeth, all hung on spines."

"False teeth?" Evillia looked sidelong at Benter vez Maprab. "Some of us have more to worry about than others." Stifled snorts of laughter went up from several tourists. Even Eltsac chuckled. Benter glared at the Highhead girl. She ignored him.

High in the sky, almost too small to see, were a couple of moving black specks. As Radnal pointed them out to the group, a third joined them. "Another feathered optimist," he said. "This is wonderful country for vultures. Thermals from the Bottomlands's floor make soaring effortless. They're waiting for a donkey—or one of us—to keel over and die. Then they'll feast."

"What do they eat when they can't find tourists?" Toglo zev Pamdal asked.

"Humpless camels, or boar, or anything else dead they spy," Radnal said. "The only reason there aren't more of them is that the terrain is too barren to support many large-bodied herbivores."

"I've seen country that isn't," Moblay Sopsirk's son said. "In Duvai, east of Lissonland, the herds range the grasslands almost as they did in the days before mankind. The past hundred years, though, hunting has thinned them out. So the Duvains say, at any rate; I wasn't there then."

"I've heard the same," Radnal agreed. "It isn't like that here." He waved to show what he meant. The Bottomlands were too hot and dry to enjoy a covering of grass. Scattered over the plain were assorted varieties of succulent spurges, some spiny, some glossy with wax to hold down water loss. Sharing the landscape with them were desiccated-looking bushes—thorny burnets, oleander, tiny Bottomlands olive plants (they were too small to be trees). Smaller plants huddled in shadows round the base of the bigger ones. Radnal knew seeds were scattered everywhere, waiting for the infrequent rains. But most of the ground was as barren as if the sea had disappeared yesterday, not five and a half million years before.

"I want all of you to drink plenty of water," Radnal said. "In weather like this you sweat more than you think. We've packed plenty aboard the donkeys, and we'll replenish their carrying bladders tonight back at the lodge. Don't be shy—heatstroke can kill you if you aren't careful."

"Warm water isn't very satisfying to drink," Lofosa grumbled.

"I am sorry, freelady, but Trench Park hasn't the resources to haul a refrigerator around for anyone's convenience," Radnal said.

Despite Lofosa's complaint, she and Evillia both drank regularly. Radnal scratched his head, wondering how the Krepalgan girls could seem so fuzz-brained but still muddle along without getting into real trouble.

Evillia had even brought along some flavoring packets, so while everyone else poured down blood-temperature water, she had blood-temperature fruit punch instead. The crystals also turned the water the color of blood. Radnal decided he could do without them.

They got to the Bitter Lake a little before noon. It was more a salt marsh than a lake; the Dalorz River did not drop enough water off the ancient continental shelf to keep a lake bed full against the tremendous evaporation in the eternally hot, eternally dry Bottomlands. Salt pans gleamed white around pools and patches of mud.

"Don't let the donkeys eat anything here," Radnal warned. "The water brings everything from the underground salt layer to the surface. Even Bottomlands' plants have trouble adapting." That was emphatically true. Despite the water absent everywhere else in Trench Park, the landscape round the Bitter Lake was barren even by Bottomlands standards. Most of the few plants that did struggle to grow were tiny and stunted.

Benter vez Maprab, whose sole interest seemed to be horticulture, pointed to one of the exceptions.

"What's that, the ghost of a plant abandoned by the gods?"

"It looks like it," Radnal said; the shrub had skinny, almost skeletal branches and leaves. Rather than being green, it was white with sparkles that shifted as the breeze shook it. "It's a saltbush, and it's found only around the Bitter Lake. It deposits the salts it picks up from ground water as crystals on all its above-ground parts. That does two things: it gets rid of the salt, and having the reflective coating lowers the plant's effective temperature."

"It also probably keeps the saltbush from getting eaten very often," Toglo zev Pamdal said.

"Yes, but with a couple of exceptions," Radnal said. "One is the humpless camel, which has its own ways of getting rid of excess salt. The other is my little friend the fat sand rat, although it prefers desert spurges, which are juicier."

The Strongbrow woman looked around. "One of the things I expected to see when I came down here, both the first time and now, was lots of lizards and snakes and tortoises. I haven't, and it puzzles me. I'd have thought the Bottomlands would be a perfect place for cold-blooded creatures to live."

"If you look at dawn or dusk, Toglo zev, you'll see plenty. But not in the heat of the day. Cold-blooded isn't a good term for reptiles; they have a variable body temperature, not a constant one like birds or mammals. They warm themselves by basking, and cool down by staying out of the midday sun. If they didn't, they'd cook."

"I know just how they feel." Evillia ran a hand through her thick dark hair. "You can stick eating tongs in me now, because I'm done all the way through."

"It's not so bad as that," Radnal said. "I'm sure it's under fifty hundredths, and it can get above fifty even here. And Trench Park doesn't have any of the deepest parts of the Bottomlands. Down another couple of thousand cubits, the extreme temperatures go above sixty."

The non-Tarteshans groaned. So did Toglo zev Pamdal and Peggol vez Menk. Tarteshem had a relatively mild climate; temperatures there went past forty hundredths only from late spring to early fall. With morbid curiosity, Moblay Sopsirk's son said, "What is the highest temperature ever recorded in the Bottomlands?"

"Just over sixty-six," Radnal said. The tourists groaned again, louder.

Radnal led the line of donkeys around the Bitter Lake. He was careful not to get too close to the little water actually in the lake at this time of year. Sometimes a salt crust formed over mud; a donkey's hoof could poke right through, trapping the animal and slicing its leg against the hard, sharp edge of the crust. After a while, the tour guide asked, "Do you have all the pictures you want?" When no one denied it, he said, "Then we'll head back toward the lodge."

"Hold on." Eltsac vez Martois pointed across the Bitter Lake. "What are those things over there?"

"I don't see anything, Eltsac," his wife said. "You must be looking at a what-do-you-call-it, a mirage." Then, grudgingly, a heartbeat later, "Oh."

"It's a herd of humpless camels," Radnal said quietly. "Try not to spook them." The herd was a little one, a couple of long-necked males with a double handful of smaller females, and a few young ones that seemed all leg and awkwardness. Unlike the donkeys, they ambled over the crust around the Bitter Lake. Their hooves were wide and soft, spreading under their weight to keep them from falling through.

A male stood guard as the rest of the herd drank at a scummy pool of water. Golobol looked distressed.

"That horrid liquid, surely it will poison them," he said. "I would not drink it to save my life." His round brown face screwed up in disgust.

"If you drank it, it would end your days all the sooner. But humpless camels have evolved along with the Bottomlands; their kidneys are wonderfully efficient at extracting large amounts of salt."

"Why don't they have humps?" Lofosa asked. "Krepalgan camels have humps." By her tone, what she was used to was right.

"I know Krepalgan camels have humps," Radnal said. "But the camels in the southern half of the Double Continent don't, and neither do these. With the Bottomlands beasts, I think the answer is that any lump of fat—which is what a hump is—is a liability in getting rid of heat."

"In the days before motors, we used to ride our Krepalgan camels," Evillia said. "Has anyone ever tamed your humpless ones?"

"That's a good question," Radnal said, beaming to hide his surprise at her coming up with a good question. He went on, "It has been tried many times, in fact. So far, it's never worked. They're too stubborn to do what a human being wants. If we had domesticated them, you'd be riding them now instead of these donkeys; they're better suited to the terrain here."

Toglo zev Pamdal scratched her mount's ears. "They're also uglier than donkeys."

"Freelady—uh, Toglo zev—I can't argue with you," Radnal said. "They're uglier than anything I can think of, with dispositions to match."

As if insulted by words they couldn't have heard, the humpless camels raised their heads and trotted away from the Bitter Lake. Their backs went up and down, up and down, in time to their rocking gait. Evillia said, "In Krepalga, we sometimes call camels desert barques. Now I see why; riding on one looks like it would make me seasick."

The tourists laughed. So did Radnal. Making a joke in a language that wasn't Evillia's took some brains. Then why, Radnal wondered, did she act so empty-headed? But he shrugged; he'd seen a lot of people with brains do impressively stupid things.

"Why don't the camels eat all the forage in Trench Park?" Benter vez Maprab asked. He sounded as if his concern was for the plants, not the humpless camels.