Arthur C Clarke - City And The Stars Read online

  Feeling puzzled, and a little worried, he pressed his face against the side of the machine. His speed was still blurring the walls of the tunnel into a featureless gray, yet now from time to time he could catch a glimpse of markings that disap­peared almost as quickly as they came. And at each disap­pearance, they seemed to remain in his field of vision for a little longer. Then, without any warning, the walls of the tunnel were snatched away on either side. The machine was passing, still at a very great speed, through an enormous empty space, far larger even than the chamber of the moving ways. Peering in wonder through the transparent walls, alvin could glimpse beneath him an intricate network of guiding rods, rods that crossed and crisscrossed to disappear into a maze of tunnels on either side. A flood of bluish light poured down from the arched dome of the ceiling and silhouetted against the glare he could just make out the frameworks of great machines. The light was so brilliant that it pained the eyes, and alvin knew, that this place had not been intended for man. A moment later, his vehicle flashed past row after row of cylinders, lying motionless above their guide rails. They were much larger than the one in which he was traveling, and alvin guessed that they must have been used for transporting freight. Around them were grouped incomprehensible, many-­jointed mechanisms, all silent and stilled. Almost as quickly as it had appeared, the vast and lonely chamber vanished behind him. Its passing left a feeling of awe in alvin's mind; for the first time he really understood the meaning of that great, darkened map below diaspar. The world was more full of wonder than he had ever dreamed. Alvin glanced again at the indicator. It had not changed; he had taken less than a minute to flash through the great cavern. The machine was accelerating again; though there was little sense of motion, the tunnel walls were flowing past on either side at a speed he could not even guess. It seemed an age before that indefinable change of vibra­tion occurred again. Now the indicator was reading:

  Lys 1 minute

  That minute was the longest that alvin had ever known. More and more slowly moved the machine; this was no mere slackening of its speed. It was coming at last to rest. Smoothly and silently the long cylinder slid out of the tunnel into a cavern that might have been the twin of the one below diaspar. For a moment alvin was too excited to see anything clearly; the door had been open for a considerable time before he realized that he could leave the vehicle. As he hurried out of the machine, he caught a last glimpse of the indicator. Its wording had now changed and its message was infinitely reassuring:

  Diaspar 35 minutes

  As he began to search for a way out of the chamber, alvin found the first hint that he might be in a civilization dif­ferent from his own. The way to the surface clearly lay through a low, wide tunnel at one end of the cavern-and leading up through the tunnel was a flight of steps. Such a thing was extremely rare in diaspar; the architects of the city had built ramps or sloping corridors whenever there was a change of level. This was a survival from the days when most robots had moved on wheels, and so found steps an impassable barrier. The stairway was very short, and ended against doors that opened automatically at alvin's approach. He walked into a small room like that which had carried him down the shaft under the tomb of yarlan zey, and was not surprised when a few minutes later the doors opened again to reveal a vaulted corridor rising slowly to an archway that framed a semicircle of sky. There had been no sensation of movement, but alvin knew that he must have risen many hundreds of feet. He hurried forward up the slope to the sunlit opening, all fear forgotten in his eagerness to see what lay before him. He was standing at the brow of a low hill, and for an in­stant it seemed as if he were once again in he central park of diaspar. Yet if this were indeed a park, it was too enormous for his mind to grasp. The city he had expected to see was nowhere visible. As far as the eye could reach there was nothing but forest and grass-covered plains. Then alvin lifted his eyes to the horizon, and there above the trees, sweeping fiom right to left in a great arc that encircled the world, was a line of stone which would have dwarfed the mightiest giants of diaspar. It was so far away that its details were blurred by sheer distance, but there was something about its outlines that alvin found puzzling. Then his eyes became at last accustomed to the scale of that colos­sal landscape, and he knew that those far-off walls had not been built by man. Time had not conquered everything earth still possessed mountains of which she could be proud. For a long time alvin stood at the mouth of the tunnel, slowly growing accustomed to the strange world in which he had found himself. He was half stunned by the impact of sheer size and space; that ring of misty mountains could have enclosed a dozen cities as large as diaspar. Search as he might, however, alvin could see no trace of human life. Yet the road that led down the hillside seemed well-kept; he could do no better than accept its guidance. At the foot of the hill, the road disappeared between great trees that almost hid the sun. As alvin walked into their shadow, a strange medley of scents and sounds greeted him. The rustle of the wind among the leaves he had known be­fore, but underlying that were a thousand vague noises that conveyed nothing to his mind. Unknown odors assailed him, smells that had been lost even to the memory of his race. The warmth, the profusion of scent and color, and the unseen presences of a million living things, smote him with almost physical violence. He came upon the lake without any warning. The trees to the right suddenly ended, and before him was a great expanse of water, dotted with tiny islands. Never in his life had alvin seen so much water; by comparison, the largest pools in diaspar were scarcely more than puddles. He walked slowly down to the edge of the lake and cupped the warm water in his hands, letting it trickle through his fingers. The great silver fish that suddenly forced its way through the underwater reeds was the first nonhuman creature that alvin had ever seen. It should have been utterly strange to him, yet its shape teased his mind with a haunting familiarity. As it hung there in the pale green void, its fins a faint blur of motion, it seemed the very embodiment of power and speed. Here, incorporated in living flesh, were the graceful lines of the great ships that had once ruled the skies of earth. Evolution and science had come to the same answers; and the work of nature had lasted longer. At last alvin broke the lake's enchantment, and continued along the winding road. The forest closed around him once more, but only for a little while. Presently the road ended, in a great clearing half a mile wide and twice as long-and alvin understood why he had seen no trace of man before.

  The clearing was full of low, two-storied buildings, colored in soft shades that rested the eye even in the full glare of the sun. Most were of clean, straightforward design, but several were built in a complex architectural style involving the use of fluted columns and gracefully fretted stone. In these buildings, which seemed of great age, the immeasurably an­cient device of the pointed arch was used. As he walked slowly toward the village, alvin was still struggling to grasp his new surroundings. Nothing was famil­iar; even the air had changed, with its hint of throbbing, unknown life. And the tall, golden-haired people going among the buildings with such unconscious grace were obviously of a different stock from the men of diaspar. They took no notice of alvin, and that was strange, for his clothing was totally different from theirs. Since the tem­perature never changed in diaspar, dress there was purely ornamental and often extremely elaborate. Here it seemed mainly functional, designed for use rather than display, and frequently consisted of a single sheet draped around the body. It was not until alvin was well inside the. Village that the people of lys reacted to his presence, and then their re­sponse took a somewhat unexpected form. A group of five men emerged from one of the houses and began to walk purposefully toward him-almost as if, indeed, they had been expecting his arrival. Alvin felt a sudden, heady ex­citement, and the blood pounded in his veins. He thought of all the fateful meetings men must have had with other races on far-off worlds. Those he was meeting now were of his own species-but how had they diverged in the aeons that had sundered them from diaspar? The delegation came to a halt a few feet away from alvin. Its l
eader smiled, holding out his hand in the ancient ges­ture of friendship. "We thought it best to meet you here," he said. "Our home is very different from diaspar, and the walk from the ter­minus gives visitors a chance to become acclimatized." alvin accepted the outstretched hand, but for a moment was too surprised to reply. Now he understood why all the other villagers had ignored him so completely. "You knew i was coming?" he said at length. "Of course. We always know when the carriers start to move. Tell me-how did you discover the way? It has been such a long time since the last visitor that we feared the se­cret had been lost." the speaker was interrupted by one of his companions. "I think we'd better restrain our curiosity, gerane. Seranis is waiting." the name "seranis" was preceded by a word unfamiliar to alvin, and he assumed that it was a title of some kind. He had no difficulty in understanding the others, and it never occurred to him that there was anything surprising about this. Diaspar and lys shared the same linguistic herit­age, and the ancient invention of sound recording had long ago frozen speech in an unbreakable mold. Gerane gave a shrug of mock resignation. "Very well," he smiled. "Seranis has few privileges-i should not rob her of this one." as they walked deeper into the village, alvin studied the men around him. Thev appeared kindly and intelligent, but these were virtues he had taken for granted all his life, and he was looking for ways in which they differed from a similar group in diaspar. There were differences, but it was hard to define them. They were all somewhat taller than alvin, and two of them showed the unmistakable marks of physical age. Their skins were very brown, and in all their movements they seemed to radiate a vigor and zest which alvin found refreshing, though at the same time a little bewildering. He smiled as he remembered khedron's proph­ecy that, if he ever reached lys, he would find it exactly the same as diaspar. The people of the village now watched with frank curi­osity as alvin followed his guides; there was no longer any pretense that they took him for granted. Suddenly there were shrill, high-pitched shouts from the trees on the right, and a group of small, excited creatures burst out of the woods and crowded around alvin. He stopped in utter amazement, unable to believe his eyes. Here was something that his world had lost so long ago that it lay in the realms of mythology. This was the way that life had once begun; these noisy, fascinating creatures were human children. Alvin watched them with wondering disbelief-and with another sensation which tugged at his heart but which he could not yet identify. No other sight could have brought home to him so vividly his remoteness from the world he knew. Diaspar had paid, and paid in full, the price of immor­tality. The party halted before the largest building alvin had yet seen. It stood in the center of the village and from a flagpole on its small circular tower a green pennant floated along the breeze. All but gerane dropped behind as he entered the build­ing. Inside it was quiet and cool; sunlight filtering through the translucent walls fit up everything with a soft, restful glow. The floor was smooth and resilient, inlaid with fine mosaics. On the walls, an artist of great ability and power had depicted a set of forest scenes. Mingled with these paintings were other murals which conveyed nothing to alvin's mind, yet which were attractive and pleasant to look upon. Let into one wall was a rectangular screen filled with a shifting maze of colors­presumably a visiphone receiver, though a rather small one. They walked together up a short circular stairway that led them out onto the flat roof of the building. From this point the entire village was visible, and alvin could see that it con­sisted of about a hundred buildings. In the distance the trees opened out to enclose wide meadows, where animals of sev­eral different types were grazing. Alvin could not imagine what these were, most of them were quadrupeds, but some seemed to have six or even eight legs. Seranis was waiting for him in the shadow of the tower, alvin wondered how old she was; her long, golden hair was touched with gray, which he guessed must be some indica­tion of age. The presence of children, with all the consequences that implied, had left him very confused. Where there was birth, then surely there must also be death, and the life span here in lys might be very different from that in diaspar. He could not tell whether seranis was fifty, five hundred, or five thousand years old, but looking into her eyes be could sense that wisdom and depth of experience be sometimes felt when he was with jeserac. She pointed to a small seat, but though her eyes smiled a welcome she said nothing until alvin had made himself com­fortable-or as comfortable as he could be under that in­tense though friendly scrutiny. The she sighed, and addressed alvin in a low gentle voice. "This is an occasion which does not often arise, so you will excuse me if i do not know the correct behavior. But there are certain rights due to a guest, even if an unexpected one. Before we talk, there is something about which i should warn you. I can read your mind." she smiled at alvin's obvious consternation, and added quickly: "there is no need to let that worry you. No right is respected more strongly than that of mental privacy. I will enter your mind only if you invite me to. But it would not be fair to hide this fact from you, and it will explain why we find speech somewhat slow and difficult. It is not often used here." this revelation, though slightly alarming, did not surprise alvin. Once both men and machines had possessed this power, and the unchanging machines could still read their masters' orders. But in diaspar, man himself had lost the gift he had once shared with his slaves. "I do not know what brought you from your world to ours," continued seranis, "but if you are looking for life, your search has ended. Apart from diaspar, there is only des­ert beyond our mountains." it was strange that alvin, who had questioned accepted be­liefs so often before, did not doubt the words of seranis. His only reaction was one of sadness that all his teaching had been so nearly true. "Tell me about lys," he begged. "Why have you been cut off from diaspar for so long, when you seem to know so much about us?" seranis smiled at his eagerness. "Presently," she said. "But first i would like to know some­thing about you. Tell me how you found the way here, and why you came. " Haltingly at first, and then with growing confidence. Alvin told his story. He had never spoken with such freedom be­fore; here at last was someone who would not laugh at his dreams because they knew those dreams were true. Once or twice seranis interrupted him with swift questions, when he mentioned some aspect of diaspar that was unfamiliar to her. It was hard for alvin to realize that things which were part of his everyday life would be meaningless to someone who had never lived in the city and knew nothing of its complex cul­ture and social organization. Seranis listened with such under­standing that he took her comprehension for granted; not until much later did he realize that many other minds besides hers were listening to his words. When he had finished, there was silence for a while. Then seranis looked at him and said quietly: "why did you come to lys?" alvin glanced at her in surprise "i've told you," he said. ` I wanted to explore the world. Everyone told me that there was only desert beyond the city, but i had to see for myself." "and was that the only reason?" alvin hesitated. When at last he answered, it was not the indomitable explorer who spoke, but the lost child who had been born into an alien world "no," he said softly, "that wasn't the only reason-though i did not know it until now i was lonely " "lonely? In diaspar?" there was a smile on the lips of seranis, but sympathy in her eyes, and alvin knew that she expected no further answer. Now that he had told his story, he waited for her to keep her share of the bargain. Presenty seranis rose to her feet and began to pace to and fro on the roof. "I know the questions you wish to ask," she said. "Some of them i can answer, but it would be wearisome to do it in words. If you will open your mind to me, i will tell you what you need to know. You can trust me: i will take nothing from you without your permission." "what do you want me to do?" said alvin cautiously. "Will yourself to accept my help-look at my eyes-and forget everything," commanded seranis. Alvin was never sure what happened then. There was a total eclipse of all his senses, and though he could never remember acquiring it, when he looked into his mind the knowledge was there. He saw back into the past, not clearly, but as a man on some high mountain might look out across a misty plain. He unde
rstood that man had not always been a city dweller, and that since the machines gave him freedom from toil there had always been a rivalry between two different types of civilizaton. In the dawn ages there had been thousands of cities, but a large part of mankind had preferred to live in relatively small communities. Universal transport and instan­taneous communication had given them all the contact they required with the rest of the world, and they felt no need to live huddled together with millions of their fellows. Lys had been little different, in the early days, from hun­dreds of other communities. But gradually, over the ages, it developed an independent culture which was one of the highest that mankind had ever known. It was a culture based largely upon the direct use of mental power, and this set it apart from the rest of human society, which came to rely more and more upon machines. Through the aeons, as they advanced along their different roads, the gulf between lys and the cities widened. It was bridged only in times of great crisis; when the moon was falling its destruction was carried out by the scientists of lys. So also was the defense of earth against the invaders, who were held at bay in the final battle of shalmirane. That great ordeal exhausted mankind; one by one the cities died and the desert rolled over them. As the population fell, humanity began the migration that was to make diaspar the last and greatest of all cities. Most of these changes did not affect lys, but it had its own battle to fight-the battle against the desert. The natural barrier of the mountains was not enough, and many ages passed before the great oasis was made secure. The picture was blurred here, perhaps deliberately. Alvin could not see what had been done to give lys the virtual eternity that di­aspar had achieved. The voice of seranis seemed to come to him from a great distance-yet it was not her voice alone, for it was merged into a symphony of words, as though many other tongues were chanting in unison with hers. "That, very briefly, is our history. You will see that even in the dawn ages we had little to do with the cities, though their people often came into our land. We never hindered them, for many of our greatest men came from outside, but when the cities were dying we did not wish to be involved in their downfall. With the ending of air transport there was only one way into lys-the carrier system from diaspar. It was closed at your end, when the park was built-and you forgot us, though we have never forgotten you. "Diaspar has surprised us. We expected it to go the way of all other cities, but instead it has achieved a stable cul­ture that may last as long as earth. It is not a culture that we admire yet we are glad that those who wish to escape have been able to do so. More than you might think have made the journey, and they have almost always been outstanding men who brought something of value with them when they came to lys." the voice faded; the paralysis of alvin's senses ebbed away and he was himself again. He saw with astonishment that the sun had fallen far below the trees and that the eastern sky already held a hint of night. Somewhere a great bell vibrated with a throbbing boom that pulsed slowly into silence, leaving the air tense with mystery and premonition. Alvin found him­self trembling slightly, not with the first touch of the evening's chill, but through sheer awe and wonder at all that he had learned. It was very late, and he was far from home. He had a sudden need to see his friends again, and to be among the familiar sights and scenes of diaspar. "I must return," he said. "Khedron-my parents-they will be expecting me." that was not wholly true; khedron would certainly be won­dering what had happened to him, but as far as alvin was aware no one else knew that he had left diaspar. He could not have explained the reason for this mild deceit, and was slightly ashamed of himself as soon as he had uttered the words. Seranis looked at him thoughtfully. "I am afraid it is not as easy as that," she said. "What do you mean?" asked alvin. "Won't the carrier that brought me here take me back again?" he still refused to face the idea that he might be held in lys against his will, though the idea had briefly crossed his mind. For the first time, seranis seemed slightly ill at ease. "We have been talking about you," she said-not explain­ing who the "we" might be, nor exactly how they had con- sulted together. "If you return to diaspar, the whole city will know about us. Even if you promise to say nothing, you would find it impossible to keep our secret." "why should you wish it kept?" asked alvin. "Surely it would be a good thing for both our peoples if they could meet again." seranis looked displeased. "We do not think so," she said. "If the gates were opened, our land would be flooded with the idly curious and the sensa­tion seekers. As it is now, only the best of your people have ever reached us." this reply radiated so much unconscious superiority, yet was based on such false assumptions, that alvin felt his annoyance quite eclipse his alarm. "That isn't true," he said flatly. "I do not believe you would find another person in diaspar who could leave the city, even if he wanted to-even if he knew that there was somewhere to go. If you let me return, it would make no difference to lys." "it is not my decision," explained seranis, "and you under­estimate the powers of the mind if you think that the barriers that keep your people inside their city can never be broken. However, we do not wish to hold you here against your will, but if you return to diaspar we must erase all memories of lys from your mind." she hesitated for a moment. "This has never risen before; all your predecessors came here to stay." here was a choice that alvin refused to accept. He wanted to explore lys, to learn all its secrets, to discover the ways in which it differed from his own home, but equally he was determined to return to diaspar, so that he could prove to his friends that he had been no idle dreamer. He could not understand the reasons prompting this desire for secrecy; even if he had, it would not have made any difference in his be­havior. He realized that he must play for time or else convince seranis that what she asked him was impossible. "Khedron knows where i am," he said. "You cannot erase his memories." seranis smiled. It was a pleasant smile, and one that in any other circumstances would have been friendly enough. But behind it alvin glimpsed, for the first time, the presence of overwhelming and implacable power. "You underestimate us, alvin," she replied. "That would be very easy. I can reach diaspar more quickly than i can cross lys. Other men have come here before, and some of them told their friends where they were going. Yet those friends forgot them, and they vanished from the history of diaspar." alvin had been foolish to ignore this possibility, though it was obvious, now that seranis had pointed it out. He won­dered how many times, in the millions of years since the two cultures were separated, men from lys had gone into di­aspar in order to preserve their jealously guarded secret. And he wondered just how extensive were the mental powers which these strange people. Possessed and did not hesitate to use. Was it safe to make any plans at all? Seranis had promised that she would not read his mind without his consent, but he wondered if there might be circumstances in which that promise would not be kept. "Surely," he said, "you don't expect me to make the deci­sion at once. Cannot i see something of your country before i make my choice?" "of course," replied seranis. "You can stay here as long as you wish, and still return to diaspar eventually if you change your mind. But if you can decide within the nekt few days, it will be very much easier. You do not want your friends to be worried, and the longer you are missing the harder it will be for us to make the necessary adjustments." alvin could appreciate that; he would like to know just what those "adjustments" were. Presumably someone from lys would contact khedron-without the jester ever being aware of it-and tamper with his mind. The fact of alvins disappearance could not be concealed, but the information that he and khedron had discovered could be obliterated. As the ages passed, alvin's name would join those of the other uniques who had mysteriously vanished without trace and had then been forgotten. There were many mysteries here, and he seemed no closer to solving any of them. Was there any purpose behind the curious, one-sided relationship between lys and diaspar, or was it merely a historical accident? Who and what were the uniques, and if the people from lys could enter diaspar, why had they not canceled the memory circuits that held the clue to their existence? Perhaps that was the only ques­tion to which alvin could give a plausible answer. The
cen­tral computer might be too stubborn an opponent to tackle, and would hardly be affected by even the most advanced of mental techniques. He put these problems aside; one day, when he had learned a great deal more, he might have some chance of answering them. It was idle to speculate, to build pyramids of surmise on a foundation of ignorance. "Very well," he said, though not too graciously, for he was still annoyed that this unexpected obstacle had been placed in his path. "I'll give you my answer as soon as i can, if you will show me what your land is like." "good," said seranis, and this time her smile held no hidden threat. "We are proud of lys, and it will be a pleas­ure to show you how men can live without the aid of cities. Meanwhile, there is no need for you to worry-your friends will not be alarmed by your absence. We shall see to that, if only for our own protection." it was the first time seranis had ever made a promise that she could not keep.