Like some traveler of old mapping out an unknown land, he had begun the systematic exploration of Diaspar. He spent his weeks and days prowling through the lonely towers at the margin of the city, m the hope that somewhere he might dis-cover a way out into the world beyond. During the course of his search he found a dozen of the great air vents opening high above the desert, but they were all barred-and even if the bars had not been there, the sheer drop of almost a mile was sufficient obstacle.
He found no other exits, though he explored a thousand corridors and ten thousand empty chambers. All these buildings were in that perfect and spotless condition which the people of Diaspar took for granted as part of the normal order of things. Sometimes Alvin would meet a wandering robot, obviously on a tour of inspection, and he never failed to question the machine. He learned nothing, because the machines he encountered were not keyed to respond to human speech or thoughts. Though they were aware of his presence, for they floated politely aside to let him pass, they refused to engage in conversation.
There were times when Alvin did not see another human being for days. When he felt hungry, he would go into one of the living apartments and order a meal. Miraculous machines to whose existence he seldom gave a thought would wake to life after aeons of slumber. The patterns they had stored in their memories would flicker on the edge of reality, organizing and directing the matter they controlled. And so a meal prepared by a master chef a hundred million years before would be called again into existence to delight the palate or merely to satisfy the appetite.
The loneliness of this deserted world-the empty shell sur-rounding the living heart of the city-did not depress Alvin. He was used to loneliness, even when he was among those he called his friends. This ardent exploration, absorbing all his energy and interest, made him forget for the moment the mystery of his heritage and the anomaly that cut him off from all his fellows.
He had explored less than one-hundredth of the city’s rim when he deeded that he was wasting his time. His decision was not the result of impatience, but of sheer common sense. If needs be, he was prepared to come back and finish the task, even if it took him the remainder of his life. He had seen enough, however, to convince him that if a way out of Diaspar did exist, it would not be found as easily as this. He might waste centuries in fruitless search unless he called upon the assistance of wiser men.
Jeserac had told him flatly that he knew no road out of Diaspar, and doubted if one existed. The information machines, when Alvin had questioned them, had searched their almost infinite memories in vain. They could tell him every detail of the city’s history back to the beginning of recorded times-back to the barrier beyond which the Dawn Ages lay forever hidden. But they could not answer Alvin’s simple question, or else some higher power had forbidden them to do so.
He would have to see Khedron again.
Seven
«You took your time,» said Khedron, «but I knew you would call sooner or later.»
This confidence annoyed Alvin; he did not like to think that his behavior could be predicted so accurately. He won-dered if the Jester had watched all his fruitless searching and knew exactly what he had been doing.
«I am trying to find a way out of the city,» he said bluntly. «There must be one, and I think you could help me find it.»
Khedron was silent for a moment. There was still time, if he wished, to turn back from the road that stretched be-fore him, and which led into a future beyond all his powers of prophecy. No one else would have hesitated; no other man in the city, even if he had the power, would have dared to disturb the ghosts of an age that had been dead for millions of centuries. Perhaps there was no danger, perhaps nothing could alter the perpetual changelessness of Diaspar. But if there was any risk of something strange and new coming in-to the world, this might be the last chance to ward it off.
Khedron was content with the order of things as it was. True, he might upset that order from time to time but only by a little. He was a critic, not a revolutionary. On the placidly flowing river of time, he wished only to make a few ripples: he shrank from diverting its course. The desire for adventure, other than that of the mind, had been eliminated from him as carefully and thoroughly as from all the other citizens of Diaspar.
Yet he still possessed, though it was almost extinguished, that spark of curiosity that was once Man’s greatest gift. He was still prepared to take a risk.
He looked at Alvin and tried to remember his own youth, his own dreams of half a thousand years before. Any moment of his past that he cared to choose was still clear and sharp when he turned his memory upon it. Like beads upon a string, this life and all the ones before it stretched back through the ages; he could seize and re-examine any one he wished. Most of those older Khedrons were strangers to him now; the basic patterns might be the same, but the weight of experience sepa-rated him from them forever. If he wished, he could wash his mind clear of all his earlier incarnations, when next he walked back into the Hall of Creation to sleep until the city called him forth again. But that would be a kind of death, and he was not ready for that yet. He was still prepared to go on collecting all that life could offer, like a chambered nautilus patiently adding new cells to its slowly expanding spiral.
In his youth, he had been no different from his companions. It was not until he came of age and the latent memories of his earlier lives came flooding back that he had taken up the role for which he had been destined long ago. Sometimes he felt resentment that the intelligences which had contrived Diaspar with such infinite skill could even now, after all these ages, make him move like a puppet across their stage. Here, perhaps, was a chance of obtaining a long-delayed revenge. A new actor had appeared who might ring down the curtain for the last time on a play that already had seen far too many acts.
Sympathy, for one whose loneliness must be even greater than his own; an ennui produced by ages of repetition; and an impish sense of fun-these were the discordant factors that prompted Khedron to act.
«I may be able to help you,» he told Alvin, «or I may not. I don’t wish to raise any false hopes. Meet me in half an hour at the intersection of Radius 3 and Ring 2. If I cannot do anything else, at least I can promise you an interesting journey. Alvin was at the rendezvous ten minutes ahead of time, though it was on the other side of the city. He waited impatiently as the moving ways swept eternally past him, bearing the placid and contented people of the city about their unimportant business. At last he saw the tall figure of Khe-dron appear in the distance, and a moment later he was for the first time in the physical presence of the Jester. This was no projected image; when they touched palms in the ancient greeting, Khedron was real enough.
The Jester sat down on one of the marble balustrades and regarded Alvin with a curious intentness.
«I wonder,» he said, «if you know what you are asking. And I wonder what you would do if you obtained it. Do you really imagine that you could leave the city, even if you found a way?»
I am sure of it,» replied Alvin, bravely enough, though Khedron could sense the uncertainty in his voice.
«Then let me tell you something which you may not know. You see those towers there?» Khedron pointed to the twin peaks of Power Central and Council Hall, staring at each other across a canyon a mile deep. «Suppose I were to lay a perfectly firm plank between those two towers-a plank only six inches wide. Could you walk across it?»
Alvin hesitated.
«I don’t know,» he answered. «I wouldn’t like to try.»
«I’m quite sure you could never do it. You’d get giddy and fall off before you’d gone a dozen paces. Yet if that same plank was supported just clear of the ground, you’d be able to walk along it without difficulty.»
«And what does that prove?»
«A simple point I’m trying to make. In the two experiments I’ve described, the plank would be exactly the same in both cases. One of those wheeled robots you sometimes meet could cross it just as easily if it was bridging those towers
as if it was laid along the ground. We couldn’t, because we have a fear of heights. It may be irrational, but it’s too powerful to be ignored. It is built into us; we are born with it.
In the same way, we have a fear of space. Show any man in Diaspar a road out of the city-a road that might be just like this road in front of us now-and he could not go far along it. He would have to turn back, as you would turn back if you started to cross a plank between those towers.»
«But why?» asked Alvin. «There must have been a time-»
«I know, I know,» said Khedron. «Men once went out over the whole world and to the stars themselves. Something changed them and gave them this fear with which they are now born. You alone imagine that you do not possess it. Well, we shall see. I’m taking you to Council Hall.»
The Hall was one of the largest buildings in the city, and was almost entirely given over to the machines that were the real administrators of Diaspar. Not far from its summit was the chamber where the Council met on those infrequent oc-casions when it had any business to discuss.
The wide entrance swallowed them up, and Khedron strode forward into the golden gloom. Alvin had never entered Coun-cil Hall before; there was no rule against it-there were few rules against anything in Diaspar-but like everyone else he had a certain half-religious awe of the place. In a world that had no gods, Council Hall was the nearest thing to a temple.
Khedron never hesitated as he led Alvin along corridors and down ramps that were obviously made for wheeled ma-chines, not human traffic. Some of these ramps zigzagged down into the depths at such steep angles that it would have been impossible to keep a footing on them had not gravity been twisted to compensate for the slope.
They came at last to a closed door, which slid silently open as they approached, then barred their retreat. Ahead was another door, which did not open as they came up to it. Khedron made no move to touch the door, but stood motionless in front of it. After a short pause, a quiet voice said: «Please state your names.»
I am Khedron the Jester. My companion is Alvin.»
«And your business?»
«Sheer curiosity.»
Rather to Alvin’s surprise, the door opened at once. In his experience, if one gave facetious replies to machines it always led to confusion and one had to go back to the beginning. The machine that had interrogated Khedron must have been a very sophisticated one-far up in the hierarchy of the Central Computer.
They met no more barriers but Alvin suspected that they had passed many tests of which he had no knowledge. A short corridor brought them out abruptly into a huge circular cham-ber with a sunken floor, and set in that floor was something so astonishing that for a moment Alvin was overwhelmed with wonder. He was looking down upon the entire city of Diaspar, spread out before him with its tallest buildings barely reaching to his shoulder.
He spent so long picking out familiar places and observing unexpected vistas that it was some time before he paid any notice to the rest of the chamber. Its walls were covered with a microscopically detailed pattern of black and white squares; the pattern itself was completely irregular, and when he moved his eyes quickly he got the impression hat it was flickering swiftly, though it never changed. At frequent intervals around the chamber were manually controlled machines of some type, each complete with a vision screen and a seat for the operator.
Khedron let Alvin look his fill. Then he pointed to the diminutive city and said: «Do you know what that is?»
A1vin was tempted to answer, «A model, I suppose,» but that answer was so obvious that be was sure it must be wrong. So be shook his head and waited for Khedron to answer his own question.
«You remember,» said the Jester, «that I once told you how the city was maintained-how he Memory Banks hold its pattern frozen forever. Those Banks are all around us, with all their immeasurable store of information completely defining the city as it is today. Every atom of Diaspar is somehow keyed, by forces we have forgotten, to the matrices buried in these walls.»
He waved toward the perfect, infinitely detailed simulacrum of Diaspar that lay below them.
«That is no model; it does not really exist. It is merely the projected image of the pattern held in the Memory Banks, and therefore it is absolutely identical with the city itself.
These viewing machines here enable one to magnify any desired portion, to look at it life size or larger. They are used when it is necessary to make alterations in the design, though it is a very long time since that was done. If you want to know what Diaspar is like, this is the place to come. You can learn more here in a few days than you would in a lifetime of actual exploring.»
«It’s wonderful,» said Alvin. «How many people know that it exists?’
«Oh, a good many, but it seldom concerns them. The Council comes down here from time to time; no alterations to the city can be made unless they are all here. And not even then, if the Central Computer doesn’t approve of the proposed change. I doubt if this room is visited more than two or three times a year.»
Alvin wanted to know how Khedron had access to it, and then remembered that many of his more elaborate jests must have involved a knowledge of the city’s inner mechanisms that could have come only from very profound study. It must be one of the Jester’s privileges to go anywhere and learn anything; he could have no better guide to the secrets of Diaspar.
What you are looking for may not exist,» said Khedron, «but if it does, this is where you will find it. Let me show You how to operate the monitors.»
For the next hour Alvin sat before one of the vision screens, learning to use the controls. He could select at will any point in the city, and examine it with any degree of magnification. Streets and towers and walls and moving ways flashed across the screen as he changed the co-ordinates; it was as though he was an all-seeing, disembodied spirit that could move effortlessly over the whole of Diaspar, unhindered by any physical obstructions.
Yet it was not, in reality, Diaspar that he was examining. yet moving through the memory cells looking at the dream image of the city-the dream that had had the power to hold the real Diaspar untouched by time for a billion years. He could see only that part of the city which was permanent; the people who walked its streets were no part of this frozen image. For his purpose, that did not matter. His concern now was purely with the creation of stone and metal in which he was imprisoned, and not those who shared-however willingly -his confinement.
He searched for and presently found the Tower of Loranne, and moved swiftly through the corridors and passageways which he had already explored in reality. As the image of the stone grille expanded before his eyes, he could almost feel the cold wind that had blown ceaselessly through it for per-haps half the entire history of mankind, and that was blowing now. He came up to the grille, looked out-and saw nothing. For a moment the shock was so great that he almost doubted his own memory; had his vision of the desert been nothing more than a dream?
Then he remembered the truth. The desert was no part of Diaspar, and therefore no image of it existed in the phantom world he was exploring. Anything might lie beyond that grille in reality; this monitor screen could never show it.
Yet it could show him something that no living man had ever seen. Alvin advanced his viewpoint through the grille, out into the nothingness beyond the city. He turned the control which altered the direction of vision, so that he looked back-ward along the way that he had come. And there behind him lay Diaspar-seen from the outside.
To the computers, the memory circuits, and all the multitudinous mechanisms that created the image at which Alvin was looking, it was merely a simple problem of perspective. They «knew» the form of the city; therefore they could show it as it would appear from the outside. Yet even though he could appreciate how the trick was done, the effect on Alvin was overwhelming. In spirit, if not in reality, he had escaped from the city. He appeared to be hanging in space, a few feet away from the sheer wall of the Tower of Loranne. For a moment he stared at the smooth g
ray surface before his eyes; then he touched the control and let his viewpoint drop toward the ground.
Now that he knew the possibilities of this wonderful instru-ment, his plan of action was clear. There was no need to spend months and years exploring Diaspar from the inside, room by room and corridor by corridor. From this new van-tage point he could wing his way along the outside of the city, and could see at once any openings that might lead to the desert and the world beyond.
The sense of victory, of achievement, made him feel light-headed and anxious to share his joy. He turned to Khedron, wishing to thank the Jester for having made this possible. But Khedron was gone, and it took only a moments thought to realize why.
Alvin was perhaps the only man in Diaspar who could look unaffected upon the images that were now drifting across the screen. Khedron could help him in his search, but even the Jester shared the strange terror of the Universe which had pinned mankind for so long inside its little world. He had left Alvin to continue his quest alone.
The sense of loneliness, which for a little while had lifted from Alvin’s soul, pressed down upon him once more. But this was no time for melancholy; there was too much to do. He turned back to the monitor screen, set the image of the city wall drifting slowly across it, and began his search.
Diaspar saw little of Alvin for the next few weeks, though only a few people noticed his absence. Jeserac, when he discovered that his erstwhile pupil was spending all his time at Council Hall instead of prowling around the frontier of the city, felt slightly relieved, imagining that Alvin could come to no trouble there. Eriston and Etania called his room once or twice, found that he was out and thought nothing of it. Alystra was a little more persistent. For her own peace of mind, it was a pity that she had become infatuated with Alvin, when there were so many more suitable choices. Alystra had never had any difficulty in find-ing partners, but by comparison with Alvin all the other men she knew were nonentities, cast from the same featureless mold. She would not lose him without a struggle: his aloofness and indifference set a challenge which she could not resist.
The City and the Stars Page 6