The City and the Stars/The Sands of Mars

by Arthur C. Clarke

  As Alvin and Alystra moved outward from the city’s heart, the number of people they saw in the streets slowly decreased, and there was no one in sight when they were brought to a smooth halt against a long platform of brightly colored marble. They stepped across the frozen whirlpool of matter where the substance of the moving way flowed back to its origin, and faced a wall pierced with brightly lighted tunnels. Alvin selected one without hesitation and stepped into it, with Alystra close behind. The peristaltic field seized them at once and propelled them forward as they lay back luxuriously, watching their surroundings.

  It no longer seemed possible that they were in a tunnel far underground. The art that had used all of Diaspar for its canvas had been busy here, and above them the skies seemed open to the winds of heaven. All around were the spires of the city, gleaming in the sunlight. It was not the city that Alvin knew, but the Diaspar of a much earlier age. Although most of the great buildings were familiar, there were subtle differences that added to the interest of the scene. Alvin wished he could linger, but he had never found any way of retarding his progress through the tunnel.

  All too soon they were set gently down in a large elliptical chamber, completely surrounded by windows. Through these they could catch tantalizing glimpses of gardens ablaze with brilliant flowers. There were gardens still in Diaspar, but these had existed only in the mind of the artist who conceived them. Certainly there were no such flowers as these in the world today.

  Alystra was enchanted by their beauty, and was obviously under the impression that this was what Alvin had brought her to see. He watched her for a while as she ran gaily from scene to scene, enjoying her delight in each new discovery. There were hundreds of such places in the half-deserted buildings around the periphery of Diaspar, kept in perfect order by the hidden powers which watched over them. One day the tide of life might flow this way once more, but until then this ancient garden was a secret which they alone shared.

  “We’ve further to go,” said Alvin at last. “This is only the beginning.” He stepped through one of the windows and the illusion was shattered. There was no garden behind the glass, but a circular passageway curving steeply upward. He could still see Alystra, a few feet away, though he knew that she could not see him. But she did not hesitate, and a moment later was standing beside him in the passage.

  Beneath their feet the floor began to creep slowly forward, as if eager to lead them to their goal. They walked along it for a few paces, until their speed was so great that further effort would be wasted.

  The corridor still inclined upward, and in a hundred feet had curved through a complete right angle. But only logic knew this; to all the senses it was as if one was now being hurried along an absolutely level corridor. The fact that they were in reality moving straight up a vertical shaft thousands of feet deep gave them no sense of insecurity, for a failure of the polarizing field was unthinkable.

  Presently the corridor began to slope “downward” again until once more it had turned through a right angle. The movement of the floor slowed imperceptibly until it came to rest at the end of a long hall lined with mirrors, and Alvin knew that there was no hope of hurrying Alystra here. It was not merely that some feminine characteristics had survived unchanged since Eve; no one could have resisted the fascination of this place. There was nothing like it, as far as Alvin knew, in the rest of Diaspar. Through some whim of the artist, only a few of the mirrors reflected the scene as it really was— and even those, Alvin was convinced, were constantly changing their position. The rest certainly reflected something, but it was faintly disconcerting to see oneself walking amid ever-changing and quite imaginary surroundings.

  Sometimes there were people going to and fro in the world behind the mirror, and more than once Alvin had seen faces that he recognized. He realized well enough that he had not been looking at any friends he knew in this existence. Through the mind of the unknown artist he had been seeing into the past, watching the previous incarnations of people who walked the world today. It saddened him, by reminding him of his own uniqueness, to think that however long he waited before these changing scenes he would never meet any ancient echo of himself.

  “Do you know where we are?” Alvin asked Alystra when they had completed the tour of the mirrors. Alystra shook her head. “Somewhere near the edge of the city, I suppose,” she answered carelessly. “We seem to have gone a long way, but I’ve no idea how far.”

  “We’re in the Tower of Loranne,” replied Alvin. “This is one of the highest points in Diaspar. Come— I’ll show you.” He caught Alystra’s hand and led her out of the hall. There were no exits visible to the eye, but at various points the pattern on the floor indicated side corridors. As one approached the mirrors at these points, the reflections seemed to fuse into an archway of light and one could step through into another passage. Alystra lost all conscious track of their twistings and turnings, and at last they emerged into a long, perfectly straight tunnel through which blew a cold and steady wind. It stretched horizontally for hundreds of feet in either direction, and its far ends were tiny circles of light.

  “I don’t like this place,” Alystra complained. “It’s cold.” She had probably never before experienced real coldness in her life, and Alvin felt somewhat guilty. He should have warned her to bring a cloak— and a good one, for all clothes in Diaspar were purely ornamental and quite useless as a protection.

  Since her discomfort was entirely his fault, he handed over his cloak without a word. There was no trace of gallantry in this; the equality of the sexes had been complete for far too long for such conventions to survive. Had matters been the other way around, Alystra would have given Alvin her cloak and he would have as automatically accepted.

  It was not unpleasant walking with the wind behind them, and they soon reached the end of the tunnel. A wide-meshed filigree of stone prevented them from going farther, which was just as well, for they stood on the brink of nothingness. The great air duct opened on the sheer face of the tower, and below them was a vertical drop of at least a thousand feet. They were high upon the outer ramparts of the city, and Diaspar lay spread beneath them as few in their world could ever have seen it.

  The view was the obverse of the one that Alvin had obtained from the center of the park. He could look down upon the concentric waves of stone and metal as they descended in mile-long sweeps toward the heart of the city. Far away, partly hidden by the intervening towers, he could glimpse the distant fields and trees and the eternally circling river. Further still, the remoter bastions of Diaspar climbed once more toward the sky.

  Beside him, Alystra was sharing the view with pleasure but with no surprise. She had seen the city countless times before from other, almost equally well-placed vantage points— and in considerably more comfort.

  “That’s our world— all of it,” said Alvin. “Now I want to show you something else.” He turned away from the grating and began to walk toward the distant circle of light at the far end of the tunnel. The wind was cold against his lightly clad body, but he scarcely noticed the discomfort as he walked forward into the air stream.

  He had gone only a little way when he realized that Alystra was making no attempt to follow. She stood watching, her borrowed cloak streaming down the wind, one hand half raised to her face. Alvin saw her lips move, but the words did not reach him. He looked back at her first with astonishment, then with an impatience that was not totally devoid of pity. What Jeserac had said was true. She could not follow him. She had realized the meaning of that remote circle of light from which the wind blew forever into Diaspar. Behind Alystra was the known world, full of wonder yet empty of surprise, drifting like a brilliant but tightly closed bubble down the river of time. Ahead, separated from her by no more than the span of a few footsteps, was the empty wilderness— the world of the desert— the world of the Invaders.

  Alvin walked back to join her and was surprised to find that she was trembling. “Why are you frightened?” he asked. “We’re sti
ll safely here in Diaspar. You’ve looked out of that window behind us— surely you can look out of this one as well!”

  Alystra was staring at him as if he was some strange monster. By her standards, indeed, he was.

  “I couldn’t do it,” she said at last. “Even thinking about it makes me feel colder than this wind. Don’t go any farther, Alvin!”

  “But there’s no logic in it!” Alvin persisted remorselessly. “What possible harm would it do you to walk to the end of this corridor and look out? It’s strange and lonely out there, but it isn’t horrible. In fact, the longer I look the more beautiful I think—”

  Alystra did not stay to hear him finish. She turned on her heels and fled back down the long ramp that had brought them up through the floor of this tunnel. Alvin made no attempt to stop her, since that would have involved the bad manners of imposing one’s will upon another. Persuasion, he could see, would have been utterly useless. He knew that Alystra would not pause until she had returned to her companions. There was no danger that she would lose herself in the labyrinths of the city, for she would have no difficulty in retracing her footsteps. An instinctive ability to extricate himself from even the most complex of mazes had been merely one of the many accomplishments Man had learned since he started to live in cities. The long-extinct rat had been forced to acquire similar skills when he left the fields and threw in his lot with humanity.

  Alvin waited for a moment, as if half-expecting Alystra to return. He was not surprised at her reaction— only at its violence and irrationality. Though he was sincerely sorry that she had gone, he could not help wishing that she had remembered to leave the cloak.

  It was not only cold, but it was also hard work moving against the wind which sighed through the lungs of the city. Alvin was fighting both the air current and whatever force it was that kept it moving. Not until he had reached the stone grille, and could lock his arms around its bars, could he afford to relax. There was just sufficient room for him to force his head through the opening, and even so his view was slightly restricted, as the entrance to the duct was partly recessed into the city’s wall.

  Yet he could see enough. Thousands of feet below, the sunlight was taking leave of the desert. The almost horizontal rays struck through the grating and threw a weird pattern of gold and shadow far down the tunnel. Alvin shaded his eyes against the glare and peered down at the land upon which no man had walked for unknown ages.

  He might have been looking at an eternally frozen sea. For mile after mile, the sand dunes undulated into the west, their contours grossly exaggerated by the slanting light. Here and there some caprice of the wind had carved curious whirlpools and gullies in the sand, so that it was sometimes hard to realize that none of this sculpture was the work of intelligence. At a very great distance, so far away indeed that he had no way of judging their remoteness, was a range of softly rounded hills. They had been a disappointment to Alvin; he would have given much to have seen in reality the soaring mountains of the ancient records and of his own dreams.

  The sun lay upon the rim of the hills, its light tamed and reddened by the hundreds of miles of atmosphere it was traversing. There were two great black spots upon its disc; Alvin had learned from his studies that such things existed, but he was surprised that he could see them so easily. They seemed almost like a pair of eyes peering back at him as he crouched in his lonely spy hole with the wind whistling ceaselessly past his ears.

  There was no twilight. With the going of the sun, the pools of shadow lying among the sand dunes flowed swiftly together in one vast lake of darkness. Color ebbed from the sky; the warm reds and golds drained away leaving an antarctic blue that deepened and deepened into night. Alvin waited for that breathless moment that he alone of all mankind had known— the moment when the first star shivers into life.

  It had been many weeks since he had last come to this place, and he knew that the pattern of the night sky must have changed meanwhile. Even so, he was not prepared for his first glimpse of the Seven Suns.

  They could have no other name; the phrase leaped unbidden to his lips. They formed a tiny, very compact and astonishingly symmetrical group against the afterglow of sunset. Six of them were arranged in a slightly flattened ellipse, which, Alvin was sure, was in reality a perfect circle, slightly tilted toward the line of vision. Each star was a different color; he could pick out red, blue, gold, and green, but the other tints eluded his eye. At the precise center of the formation was a single white giant— the brightest star in all the visible sky. The whole group looked exactly like a piece of jewelry; it seemed incredible, and beyond all stretching of the laws of chance, that Nature could ever have contrived so perfect a pattern.

  As his eyes grew slowly accustomed to the darkness, Alvin could make out the great misty veil that had once been called the Milky Way. It stretched from the zenith down to the horizon, and the Seven Suns were entangled in its folds. The other stars had now emerged to challenge them, and their random groupings only emphasized the enigma of that perfect symmetry. It was almost as if some power had deliberately opposed the disorder of the natural Universe by setting its sign upon the stars.

  Ten times, no more, the Galaxy had turned upon its axis since Man first walked on Earth. By its own standards, that was but a moment. Yet in that short period it had changed completely— changed far more than it had any right to do in the natural course of events. The great suns that had once burned so fiercely in the pride of youth were now guttering to their doom. But Alvin had never seen the heavens in their ancient glory, and so was unaware of all that had been lost.

  The cold, seeping through into his bones, drove him back to the city. He extricated himself from the grating and rubbed the circulation back into his limbs. Ahead of him, down the tunnel, the light streaming out from Diaspar was so brilliant that for a moment he had to avert his eyes. Outside the city there were such things as day and night, but within it there was only eternal day. As the sun descended the sky above Diaspar would fill with light and no one would notice when the natural illumination vanished. Even before men had lost the need for sleep, they had driven darkness from their cities. The only night that ever came to Diaspar was a rare and unpredictable obscuration that sometimes visited the park and transformed it into a place of mystery.

  Alvin came slowly back through the hall of mirrors, his mind still filled with night and stars. He felt inspired and yet depressed. There seemed no way in which he could ever escape out into that enormous emptiness— and no rational purpose in doing so. Jeserac had said that a man would soon die out in the desert, and Alvin could well believe him. Perhaps he might one day discover some way of leaving Diaspar, but if he did, he knew that he must soon return. To reach the desert would be an amusing game, no more. It was a game he could share with no one, and it would lead him nowhere. But at least it would be worth doing if it helped to quench the longing in his soul.

  As if unwilling to return to the familiar world, Alvin lingered among the reflections from the past. He stood before one of the great mirrors and watched the scenes that came and went within its depths. Whatever mechanism produced these images was controlled by his presence, and to some extent by his thoughts. The mirrors were always blank when he first came into the room, but filled with action as soon as he moved among them.

  He seemed to be standing in a large open courtyard which he had never seen in reality, but which probably still existed somewhere in Diaspar. It was unusually crowded, and some kind of public meeting seemed to be in progress. Two men were arguing politely on a raised platform while their supporters stood around and made interjections from time to time. The complete silence added to the charm of the scene, for imagination immediately went to work supplying the missing sounds. What were they debating? Alvin wondered. Perhaps it was not a real scene from the past, but a purely created episode. The careful balance of figures, the slightly formal movements, all made it seem a little too neat for life.

  He studied the faces in the crowd, seek
ing for anyone he could recognize. There was no one here that he knew, but he might be looking at friends he would not meet for centuries to come. How many possible patterns of human physiognomy were there? The number was enormous, but it was still finite, especially when all the unesthetic variations had been eliminated.

  The people in the mirror world continued their long-forgotten argument, ignoring the image of Alvin which stood motionless among them. Sometimes it was very hard to believe that he was not part of the scene himself, for the illusion was so flawless. When one of the phantoms in the mirror appeared to move behind Alvin, it vanished just as a real object would have done; and when one moved in front of him, he was the one who was eclipsed.

  He was preparing to leave when he noticed an oddly dressed man standing a little apart from the main group. His movements, his clothes, everything about him, seemed slightly out of place in this assembly. He spoiled the pattern; like Alvin, he was an anachronism.

  He was a good deal more than that. He was real, and he was looking at Alvin with a slightly quizzical smile.

  CHAPTER

  5

  In his short lifetime, Alvin had met less than one-thousandth of the inhabitants of Diaspar. He was not surprised, therefore, that the man confronting him was a stranger. What did surprise him was to meet anyone at all here in this deserted tower, so near the frontier of the unknown.