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Convergent Series

Page 18

by Charles Sheffield


  And now, damn it, he would never know what Quake looked like at Summertide. The planet had won; he had lost . . .

  The dust-filled wind screamed in triumph about his unconscious body.

  ARTIFACT: ELEPHANT.

  UAC#: 859

  Galactic Coordinates: 27,548.762/16,297.442/—201.33

  Name: Elephant Star/planet association: Cam H'ptiar/Emserin

  Bose Access Node: 1121 Estimated age: 9.223 ±0.31 Megayears.

  Exploration History: Discovered by remote observation in E. —4553, reached and surveyed by a Cecropian exploration fleet in E. —3227. Members of the same fleet performed the first entry to Elephant and measured its physical parameters (see below). Subsequent survey teams performed the first complete traverse of Elephant (E. —2068), attempted communication with elephant (E. —1997, E. —1920, E. —1883, all unsuccessful), and removed and tested large samples from the body (E. -1882, E. -1551). Slow changes in physical parameters and appearance were reported on each successive visit, and a permanent Cecropian observation station (Elephant Station) was established on Emserin, four light-minutes distant, in E. —1220. Human observers were added to Elephant Station for the first time 2,900 years later, in E. 1668. This artifact has been continuously monitored for more than five thousand standard years.

  Physical Description: Elephant is an elongated and amorphous gaseous mass, approximately four thousand kilometers in maximum dimension and nowhere wider than nine hundred kilometers. It is in fact not a true gas, but a wholly interconnected mass of stable polymer fibers and transfer ducts. The interior is highly conducting (mainly superconducting) of both heat and electricity.

  Applied stimuli suggest that the whole body reacts to any external influence but begins the return to its original condition with a first response time of about twenty years. Physical repair is by subsection replication, and any incident materials (e.g. cometary fragments) are employed catabolically and anabolically to synthesize needed components. Local temperature changes are corrected to the mean body temperature of 1.63 Kelvins, consistent with the use of liquid helium II as a heat-transfer agent. The necessary cooling mechanism to maintain subunits of Elephant below 2 Kelvins is unclear.

  Holes in Elephant (included excised fragments up to twenty kilometers long and complete longitudinal transects) are replaced from within, with a small matching reduction of overall dimensions. The external shape is held constant, and the impression of an amorphous body is obviously misleading. Unless material is added, or removed from the body, both the size and shape of Elephant are invariant to within fractions of a millimeter in any direction.

  Intended Purposes: Is Elephant alive? Is Elephant conscious? That debate continues. Today's consensus is that Elephant is a single active artifact with a limited self-renewal capability. Any removed section slowly becomes inert, its conductivity diminishes, and the system loses its homeostatic character. If Elephant is alive, the full response time to external stimuli is very long (hundreds of years) and the implied metabolic rate correspondingly slow.

  Regardless of this artifact's overall self-awareness, it is certainly true that Elephant can function, as a whole or in part, as a general-purpose computing device. Following the pioneering work of Demerle and T'russig, Elephant has been used extensively in applications requiring enormous storage and moderate computing speed.

  If Elephant is an intelligent and self-aware entity, the notion of purposes and uses is inappropriate. More sophisticated tests for self-awareness are clearly needed.

  —From the Lang Universal Artifact Catalog. Fourth Edition.

  CHAPTER 16

  Summertide

  minus seven.

  "It's like a treasure hunt," Graves said. He was walking on ahead, slow and steady. With his hands clasped behind him and his relaxed manner, he was like a thoughtful skeleton out for a midday stroll. "The old party game. You remember?"

  Max Perry stared after him. He had grown up on a world too harsh and marginal to permit the luxury of children's games and children's parties. Food had been his best treasure. And the best game that he could think of at the moment was survival.

  "You get clues," Graves went on. "First the beacon. Then the pointer, then the mystery caves. And then—if you're lucky—the treasure!"

  The aircar had landed on a crumbling and eroded plateau in the wilderness area between the Thousand Lakes and the outer boundary of the Pentacline Depression. In that no-man's-land the soft rock had been eaten away into deep tunnels and smooth-sided sinkholes, like soft putty that an aged giant had kneaded and poked with bent, arthritic fingers. The meters-wide holes ran haphazardly at all angles from the surface. Some dived almost vertically; others sloped so shallowly that they could be walked down with ease.

  "Be careful!" Perry hated Graves's casual attitude. "You don't know how shaky the edges might be—and you don't know what could be at the bottom! This whole area is an estivation zone for Quake wildlife."

  "Relax. It's perfectly safe." Graves took a step closer to the edge of one of the holes, then had to jump smartly backward as the rock crumbled and slid away beneath his feet. "Perfectly safe," he repeated. "This isn't the hole that we want anyway. Just follow me."

  He led the way forward again, skirting the dangerous area. Perry followed at what he hoped was a safe distance. Expecting another car, perhaps a crashed one, at the site of the distress call, both men had been surprised to find nothing there but an isolated radio beacon. Next to it, marked as a black line in the chalky white rock, was an arrow. It pointed straight toward the dark, steep tunnel on whose brink Graves was currently poised and leaning precariously forward. Alongside the arrow, in an ill-formed scrawl, were the words "In Here."

  "Fascinating." Graves leaned farther. "It seems to me—"

  "Don't go so near!" Perry exclaimed when Graves moved forward again. "That edge there, if it's like the other one . . ."

  "Oh, phooey." Graves jumped up and down. "See, solid as the Alliance. And I read the report before I came to Dobelle—there are no dangerous animals on Quake."

  "Sure, you read the report, but I wrote the damned thing. There's a lot we don't know about Quake." Perry advanced cautiously to the brink of the tunnel and peered down. The rock seemed firm enough, and quite old. On Quake that was a good sign. The surface here at least had a certain permanence, as though it had avoided the turmoil that hit the planet at Summertide. "Anyway, it's not just animals. Mud pools can be just as bad. You don't even know how deep this hole is. Before you start charging down there, at least take a sounding."

  He picked up a fist-sized chunk of chalky stone and lobbed it down the line of the tunnel. Both men leaned forward, listening for an echo where it struck the bottom. There was a two-second silence, then a thud, a whoof of protest, and a surprised whistle.

  "Ah-ha! That's not a rock or a mud pool." Graves snapped his fingers and started to scramble on his bottom down the steep-sided hole. He had a flashlight, and he was shining it along in front of him. "That's the Carmel twins down there. I told you what to expect, Commander—the beacon, the arrow, the cave, and then the—" He halted. "And then . . . well, well, well. We were wrong."

  Perry, a few steps behind, craned to see past Graves. The narrow beam of the flashlight reflected from a line of bright black eyes. As Graves held the light steady a small body, its black fur dusted to gray by a coating of fine powder, moved slowly up the incline. The Hymenopt was rubbing her tubby midsection with a foreleg, and while they watched she shook herself like a drenched dog and threw off a cloud of white dust.

  There was another whistle, and a click-click-click of jointed hind limbs.

  "Kallik offers respect and obedience," a familiar, sibilant voice said. J'merlia was emerging from around the curve of the tunnel. He, too, was completely coated with fine talc. "She is a loyal slave and servant. She asks, why do you throw stones at her? Did her master command it?"

  The Lo'tfian's narrow face was not equipped to register human emotions, but there was
a puzzled and worried tone in his voice. Instead of answering, Graves slithered farther along the tunnel to where it leveled off as a small cave whose floor was covered with powdered gypsum. He stared at the cleared area, and then at the little pile of objects standing in the middle of it.

  "You were here in the dark?"

  "No." J'merlia's compound eyes glittered in the flashlight beam. "It is not dark. We can both see here fairly well. Do you need our assistance?"

  Perry, who had followed Graves down the tunnel at his own pace, pushed past the other man and reached up high to touch the tunnel's roof. "See those? Cracks. Recent ones. I'm sure we shouldn't stay any longer. What are you doing down here, J'merlia?"

  "Why, we are waiting. As we were instructed to do." The Lo'tfian offered a rapid set of whistles to Kallik, then continued. "Our masters brought us here and told us to await their return. Which we are doing."

  "Atvar H'sial and Louis Nenda?"

  "Of course. Owners never change."

  "So Nenda didn't fly home in a huff. When did your masters leave?"

  "Two days ago. We stayed at first on the surface, but we did not like conditions there—too hot, too open, too hard to breathe. But here, snug underground—"

  "Snug, while the roof is ready to fall in. When did they say they would be back?"

  "They did not say. Why should they? We have food; we have water; we are safe here."

  "Don't bother to ask any more, Commander." Graves, done with his inventory of the little cavern, sank to his knees and began rubbing at eyes irritated by the fine dust that flew up at every movement. "Atvar H'sial and Louis Nenda would not have provided their itinerary, or anything else, to J'merlia. Why should they, as J'merlia says? To make it easier for you or me to follow them? No." His voice dropped to a stage whisper. "If they ever intended to come back for them at all! Maybe they have abandoned them. But even that is not the right question. The real question, one that I ask myself and do not like the answer to, is this: Where did H'sial and Nenda go? Where did they go, on Quake near Summertide, where they could not or would not take J'merlia and Kallik with them?"

  As though answering his question, there was a tremor through the floor of the cave. The minor quake left the roof intact, but a cloud of fine white powder flew up to cover all of them.

  "I don't care—ough!—where they went." Perry had trouble holding back his coughs. "I care about us, and where we go next."

  "We go to find the Carmel twins." Graves rubbed the white powder away from his eyes again and looked like a circus clown.

  "Sure. Where? And when?" Perry was aware of the running clock, even if Graves was not. "It's only fifty-five hours to Summertide."

  "Ample time."

  "No. You think, fifty-five hours, and you imagine that you'll be all right until then. That's totally wrong. Anybody who is still on the surface of Quake five hours or even fifteen hours from Summertide is probably dead. If we don't find the twins soon—in the next ten to twelve hours—they're dead, too. Because we'll have to give up the search and head back to the Umbilical."

  Perry was finally getting through to the councilor. Graves stood, bald head bowed, and sighed in agreement. "All right. We don't have time to argue. Let's look for the twins."

  "What about these two?" Perry gestured at Kallik and J'merlia.

  "They come with us. Naturally. Atvar H'sial and Louis Nenda may never come back, or they may be too late, or they may not be able to track that beacon—you said it was running low on power."

  "It is. I agree, we can't just leave the aliens. There's enough room in the car for all of us." Perry turned to J'merlia and Kallik. "Come on. Let's get out of here."

  When the others did not move, he reached out for one of J'merlia's slender black forelimbs and started toward the tunnel entrance. Surprisingly, the Lo'tfian resisted.

  "With respect, Commander Perry." J'merlia dug in six of his feet and cowered down until his slender abdomen was touching the rocky floor. "Humans are much greater beings than me or Kallik, we know that, and we will seek to do whatever you tell us. But Atvar H'sial and Louis Nenda gave us orders to stay in this area. We must wait until they return."

  Perry turned in frustration to Graves. "Well? They won't do what I tell them. Do you think they'll obey a direct order from you?"

  "Probably not." The councilor looked calmly at J'merlia. "Would you?"

  The Lo'tfian shivered and groveled lower on the powdery floor.

  Graves nodded. "That's answer enough. You see, Commander, we are placing them in an impossible position. Although they are trained to obey us, they cannot disobey the orders of their owners. They also have strong instincts to save their own lives, but they do not see the danger here. However, I have an alternative proposal—one that may be acceptable to them. We can leave them here—"

  "We can't leave them. They'll die."

  "We don't leave them indefinitely. But we are close to the Pentacline Depression. We can explore that for the twins. And if we provide a new power source for this beacon we can come back here afterward, whether we succeed or fail. By that time, perhaps Nenda and Atvar H'sial will also have returned. If not, the surface of Quake will surely be more obviously dangerous, and we can try again to persuade the aliens to leave."

  Perry was still hesitating. At last he shook his head. "I think we can do better." He turned to J'merlia. "Were you told not to leave the place where Atvar H'sial and Louis Nenda dropped you off?"

  "That is correct."

  "But you already left that place—to come down into this tunnel. So you must have some freedom of movement. How far are you and Kallik willing to roam?"

  "One moment, please." J'merlia turned away from Perry and held a whistling dialog with the Hymenopt, who had been squatting on the floor completely immobile. Finally he nodded.

  "It is not so much a question of distance, as of time. A few kilometers would be all right; Kallik and I are agreed that we could go so far on foot. But if you are sure we can return here in three or four hours, we would be willing to travel a longer distance by aircar."

  Graves was shaking his head. "Four hours is not long enough. How big is the Pentacline Depression, Commander?"

  "Roughly a hundred and fifty kilometers across."

  "And the twins may be in there, but they could be way over on the other side. I'm sure we can find them, given enough time, but we can't make an adequate scan for a starship in a few hours. We'll have to do it my way; leave these two here, and then come back."

  Kallik interjected a whistle and a series of agitated clicks.

  "But coming back will cut further into the search time." Perry ignored the Hymenopt. "If the two aliens would—"

  "With great respect, Captain," J'merlia cut in—the first time he had ever interrupted a human. "But in all the time since Kallik and I met on Opal, I have been teaching her human talk. Already she understands some, though she cannot yet speak. Now she asks me, did she hear what she thought she heard? Are you searching for other human presence, here on the surface of Quake?"

  "We sure are—if we can ever get out of here! So no more talk, we have to—"

  This time it was Kallik herself who interrupted. The Hymenopt ran up close to Perry, raised herself onto the points of her toes, and produced a rapid series of whistling screams.

  "With great respect," J'merlia gabbled before Perry could speak again, "she wants you to know that there is a starship on the surface of Quake."

  "We know. The one that Kallik and Louis Nenda used to come over from Opal."

  "Not that one. Before they landed, Master Nenda did a precautionary scan, because he was worried that there might be a trap. He picked up the trace of a ship's Bose Drive. Kallik says it was an Alliance design, able to do Bose Network transfers. She thinks, maybe it brought the humans you seek."

  Kallik grunted and whistled again. J'merlia nodded.

  "She says it is only a hundred kilometers from here—a few minutes' flight time. Kallik asks, Would you have any interest in
knowing where it is?"

  CHAPTER 17

  "What sins must a man commit, in how many past lives, to be born on Teufel?"

  The water-duty for seven-year-olds was precise and unforgiving.

  Suit on, check air tank, seal respirator, walk to the lock. Warning: Opening takes place as the surface wind drops, five and a half minutes before first light, after the night predators retreat to their caves. Be there in time, or forfeit one day's food.

  Outside. Empty yesterday's wastes (time allocation, 24 seconds); climb the twenty-four stone steps to the pure-water stream that gushes halfway up the cliffside (33 seconds); wash out plastic containers (44 seconds); rinse filters (90 seconds); fill water cans (75 seconds); descend (32 seconds); reenter lock and perform closing sequence (25 seconds).

  Margin for error: seven seconds. If you are caught on the steps or with the lock wide open you are hit by the Remouleur—the Grinder, the dreaded dawn wind of Teufel. And you are dead.

  Rebka knew that. And suddenly he knew that he was late. He could hardly believe it. Usually when his turn came for the water-duty he was the one who hurried down the cliff ahead of schedule, the only one with the time and confidence to stand in the open lock and look out on Teufel's stark scenery and spiky, eccentric vegetation for a few seconds as lock closure began. The strata of the cliff face were still too dark to be seen, but he knew they were a muted purple interleaved with gray and faded reds. The strip of sky above the canyon already showed the signs of coming dawn. He could watch as the stars began to fade and streaks of high cloud turned from black to rosy gray. The sight had an indescribable beauty. It excited him.

  But not today. The trickle of spring water was weaker, and the cans refused to fill at their usual speed. Nearly five minutes were already gone. He was still on the top step, and his face mask was fogging over. He had to leave, with half-filled containers. Right now.

 

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