When he had made himself comfortable in front of the screen, he looked around for the robots. To his surprise, they had disappeared: then he located them, neatly stowed away in recesses high up beneath the curved ceiling. Their action had been so completely natural that Alvin knew at once the purpose for which they had been intended. He remembered the Master Robots: these were the Interpreters, without which no untrained human mind could control a machine as complex as a spaceship. They had brought the Master to Earth and then, as his servants, followed him into Lys. Now they were ready, as if the intervening eons had never been, to carry out their old duties once again.

  Alvin threw them an experimental command, and the great screen shivered into life. Before him was the Tower of Loranne, curiously foreshortened and apparently lying on its side. Further trials gave him views of the sky of the city, and of great expanses of desert. The definition was brilliantly, almost unnaturally, clear, although there seemed to be no actual magnification. Alvin wondered if the ship itself moved as the picture changed, but could think of no way of discovering this. He experimented for a little while until he could obtain any view he wished: then he was ready to start.

  "Take me to Lys"—the command was a simple one, but how could the ship obey it when he himself had no idea of the direction?

  Alvin had never thought of this, and when it did occur to him the machine was already moving across the desert at a tremendous speed. He shrugged his shoulders, thankfully accepting what he could not understand.

  It was difficult to judge the scale of the picture racing up the screen, but many miles must be passing every minute. Not far from the city the color of the ground had changed abruptly to a dull gray, and Alvin knew that he was now passing over the bed of one of the lost oceans. Once Diaspar must have been very near the sea, though there had never been any hint of this even in the most ancient records. Old though the city was, the oceans must have passed away long before its building.

  Hundreds of miles later, the ground rose sharply and the desert returned. Once Alvin halted his ship above a curious pattern of intersecting lines, showing faintly through the blanket of sand. For a moment it puzzled him: then he realized that he was looking down on the ruins of some forgotten city. He did not stay for long: it was heartbreaking to think that billions of men had left no other trace of their existence save these furrows in the sand.

  The smooth curve of the horizon was breaking up at last, crinkling into mountains that were beneath him almost as soon as they were glimpsed. The machine was slowing now, slowing and falling to earth in a great arc a hundred miles in length. And then below him was Lys, its forests and endless rivers forming a scene of such incomparable beauty that for a while he would go no farther. To the east, the land was shadowed and the great lakes floated upon it like pools of darker night. But toward the sunset, the waters danced and sparkled with light, throwing back toward him such colors as he had never imagined.

  It was not difficult to locate Airlee—which was fortunate, for the robots could guide him no farther. Alvin had expected this, and felt glad to have discovered some limits to their powers. After a little experimenting, he brought his ship to rest on the hillside which had given him his first glimpse of Lys. It was quite easy to control the machine: he had only to indicate his general desires and the robots attended to the details. They would, he imagined, probably ignore any dangerous or impossible orders, but he did not intend to try the experiment.

  Alvin was fairly certain that no one could have seen his arrival. He thought this rather important, for he had no desire to engage in mental combat with Seranis again. His plans were still somewhat vague, but he was running no risks until he had re-established friendly relations.

  The discovery that the original robot would no longer obey him was a considerable shock. When he ordered it from its little compartment it refused to move but lay motionless, watching him dispassionately with its multiple eyes. To Alvin's relief, the replica obeyed him instantly, but no amount of cajoling could make the prototype carry out even the simplest action. Alvin worried for some time before the explanation of the mutiny occurred to him. For all their wonderful skills, the robots were not very intelligent, and the events of the past hour must have been too much for the unfortunate machine. One by one it had seen all the Master's orders defied—those orders which it had obeyed with such singleness of purpose for so many millions of years.

  It was too late for regrets now, but Alvin was sorry he had made only a single duplicate. For the borrowed robot had become insane.

  Alvin met no one on the road to Airlee. It was strange to sit in the spaceship while his field of vision moved effortlessly along the familiar path and the whispering of the forest sounded in his ears. As yet he was unable to identify himself fully with the robot, and the strain of controlling it was still considerable.

  It was nearly dark when he reached Airlee, and the little houses were floating in pools of light. Alvin kept to the shadows and had almost reached Seranis' home before he was discovered. Suddenly there was an angry, high-pitched buzzing and his view was blocked by a flurry of wings. He recoiled involuntarily before the onslaught: then he realized what had happened. Krif did not approve of anything that flew without wings, and only Theon's presence had prevented him from attacking the robot on earlier occasions. Not wishing to hurt the beautiful but stupid creature, Alvin brought the robot to a halt and endured as best he could the blows that seemed to be raining upon him. Though he was sitting in comfort a mile away, he could not avoid flinching and was glad when Theon came out to investigate.

  13

  At his master's approach Krif departed, still buzzing balefully. In the silence that followed Theon stood looking at the robot for a while. Then he smiled.

  "I'm glad you've come back. Or are you still in Diaspar?"

  Not for the first time Alvin felt a twinge of envy as he realized how much quicker Theon's mind was than his own.

  "No," he said, wondering as he did so how clearly the robot echoed his voice. "I'm in Airlee, not very far away. But I'm staying here for the present."

  Theon laughed heartily.

  "I think that's just as well," he said. "Mother's forgiven you, but the Central Council hasn't. There's a conference going on indoors now: I have to keep out of the way."

  "What are they talking about?"

  "I'm not supposed to know, but they asked me all sorts of questions about you. I had to tell them what happened in Shalmirane."

  "That doesn't matter very much," replied Alvin. "A good many other things have happened since then. I'd like to have a talk with this Central Council of yours."

  "Oh, the whole Council isn't here, naturally. But three of its members have been making inquiries ever since you left."

  Alvin smiled. He could well believe it: wherever he went now he seemed to be leaving a trail of consternation behind him.

  The comfort and security of the spaceship gave him a confidence he had seldom known before, and he felt complete master of the situation as he followed Theon into the house. The door of the conference room was locked and it was some time before Theon could attract attention. Then the walls slid reluctantly apart, and Alvin moved his robot swiftly forward into the chamber.

  The room was the familiar one in which he had had his last interview with Seranis. Overhead the stars were twinkling as if there were no ceiling or upper floor, and once again Alvin wondered how the illusion was achieved. The three councillors froze in their seats as he floated toward them, but only the slightest flicker of surprise crossed Seranis' face.

  "Good evening," he said politely, as if this vicarious entry were the most natural thing in the world. "I've decided to come back."

  Their surprise exceeded his expectations. One of the councillors, a young man with graying hair, was the first to recover.

  "How did you get here?" he gasped.

  Alvin thought it wise to evade the question: the way in which it was asked made him suspicious and he wondered if the under
ground transport system had been put out of action.

  "Why, just as I did last time," he lied.

  Two of the councillors looked fixedly at the third, who spread his hands in a gesture of baffled resignation. Then the young man who had addressed him before spoke again.

  "Didn't you have any—difficulty?"

  "None at all," said Alvin, determined to increase their confusion. He saw that he had succeeded.

  "I've come back," he continued, "under my own free will, but in view of our previous disagreement I'm remaining out of sight for the moment. If I appear personally, will you promise not to try and restrict my movements again?"

  No one said anything for a while and Alvin wondered what thoughts were being exchanged. Fhen Seranis spoke for them all.

  "I imagine that there is little purpose in doing so. Diaspar must know all about us by now."

  Alvin flushed slightly at the reproach in her voice.

  "Yes, Diaspar knows," he replied. "And Diaspar will have nothing to do with you. It wishes to avoid contamination with an inferior culture."

  It was most satisfying to watch the councillors' reactions, and even Seranis colored slightly at his words. If he could make Lys and Diaspar sufficiently annoyed with each other, Alvin realized that his problem would be more than half solved. He was learning, still unconsciously, the lost art of politics.

  "But I don't want to stay out here all night," he continued. "Have I your promise?"

  Seranis sighed, and a faint smile played about her lips.

  "Yes," she said, "We won't attempt to control you again. Though I don't think we were very successful before."

  Alvin waited until the robot had returned. Very carefully he gave the machine its instructions and made it repeat them back. Then he left the ship, and the airlock closed silently behind him.

  There was a faint whisper of air but no other sound. For a moment a dark shadow blotted out the stars: then the ship was gone. Not until it had vanished did Alvin realize his miscalculation. He had forgotten that the robot's senses were very different from his own, and the night was far darker than he had expected. More than once he lost the path completely, and several times he barely avoided colliding with trees. It was blackest of all in the forest, and once something quite large came towards him through the undergrowth. There was the faintest crackling of twigs, and two emerald eyes were looking steadfastly at him from the level of his waist. He called softly, and an incredibly long tongue rasped across his hand. A moment later a powerful body rubbed affectionately against him and departed without a sound. He had no idea what it could be.

  Presently the lights of the village were shining through the trees ahead, but he no longer needed their guidance, for the path beneath his feet had now become a river of dim blue fire. The moss upon which he was walking was luminous and his footprints left dark patches which slowly disappeared behind him. It was a beautiful and entrancing sight, and when Alvin stooped to pluck some of the strange moss it glowed for minutes in his cupped hands before its radiance died.

  Theon was waiting for him outside the house, and for the second time he was introduced to the three councillors. He noticed with some annoyance their barely concealed surprise: not appreciating the unfair advantages it gave him, he never cared to be reminded of his youth.

  They said little while he refreshed himself, and Alvin wondered what mental notes were being compared. He kept his mind as empty as he could until he had finished: then he began to talk as he had never talked before.

  His theme was Diaspar. He painted the city as he had last seen it, dreaming on the breast of the desert, its towers glowing like captive rainbows against the sky. From the treasure-house of memory he recalled the songs that the poets of old had written in praise of Diaspar, and he spoke of the countless men who had burned away their lives to increase its beauty. No one now, he told them, could ever exhaust a hundredth of the city's treasures, however long they lived. For a while he described some of the wonders which the men of Diaspar had wrought: he tried to make them catch a glimpse at least of the loveliness which such artists as Shervane and Perildor had created for men's eternal admiration. And he spoke also of Loronei, whose name he bore, and wondered a little wistfully if it were indeed true that his music was the last sound Earth had ever broadcast to the stars.

  They heard him to the end without interruption or questioning. When he had finished it was very late and Alvin felt more tired than he could ever remember. The strain and excitement of the long day had told on him at last, and quite suddenly he fell asleep.

  Alvin was still tired when they left the village not long after dawn. Early though it was, they were not the first upon the road. By the lake they overtook the three councillors, and both parties exchanged slightly self-conscious greetings. Alvin knew perfectly well where the Committee of Investigation was going, and thought it would be appreciated if he saved it some trouble. He stopped when they reached the foot of the hill and turned toward his companions.

  "I'm afraid I misled you last night," he said cheerfully. "I didn't come to Lys by the old route, so your attempt to close it wasn't really necessary."

  The councillors' faces were a study in relief and increased perplexity.

  "Then how did you get here?" The leader of the Committee spoke, and Alvin could tell that he at least had begun to guess the truth. He wondered if he had intercepted the command his mind had just sent winging across the mountains. But he said nothing, and merely pointed in silence to the northern sky.

  Too swift for the eye to follow, a needle of silver light arced across the mountains, leaving a mile-long trail of incandescence. Twenty thousand feet above Lys, it stopped. There was no deceleration, no slow braking of its colossal speed. It came to a halt instantly, so that the eye that had been following it moved on across a quarter of the heavens before the brain could arrest its motion. Down from the skies crashed a mighty peal of thunder, the sound of air battered and smashed by the violence of the ship's passage. A little later the ship itself, gleaming splendidly in the sunlight, came to rest upon the hillside a hundred yards away.

  It was difficult to say who was the most surprised, but Alvin was the first to recover. As they walked—very nearly running—toward the spaceship, he wondered if it normally traveled in this abrupt fashion. The thought was disconcerting, although there had been no sensation of movement on his first voyage. Considerably more puzzling, however, was the fact that the day before this resplendent creature had been hidden beneath a thick layer of iron-hard rock. Not until Alvin had reached the ship, and burned his fingers by incautiously resting them on the hull, did he understand what had happened. Near the stern there were still traces of earth, but it had been fused into lava. All the rest had been swept away, leaving uncovered the stubborn metal which neither time nor any natural force could ever touch.

  With Theon by his side, Alvin stood in the open door and looked back at the three silent councillors. He wondered what they were thinking, but their expressions gave no hint of their thoughts.

  "I have a debt to pay in Shalmirane," he said. "Please tell Seranis we'll be back by noon."

  The councillors watched until the ship, now moving quite slowly—for it had only a little way to go—had disappeared into the south. Then the young man who led the group shrugged his shoulders philosophically.

  "You've always opposed us for wanting change," he said, "and so far you've won. But I don't think the future lies with either of our parties now. Lys and Diaspar have both come to the end of an era, and we must make the best of it."

  There was silence for a little while. Then one of his companions spoke in a very thoughtful voice.

  "I know nothing of archeology, but surely that machine was too large to be an ordinary flyer. Do you think it could possibly have been—"

  "A spaceship? If so, this is a crisis!"

  The third man had also been thinking deeply.

  "The disappearance of both flyers and spaceships is one of the greatest mysteries of
the Interregnum. That machine may be either: for the moment we had better assume the worst. If it is in fact a spaceship, we must at all costs prevent that boy from leaving Earth. There is the danger that he may attract the Invaders again. That would be the end."

  A gloomy silence settled over the company until the leader spoke again.

  "That machine came from Diaspar," he said slowly. "Someone there must know the truth. I think we had better get in touch with our cousins—if they'll condescend to speak to us."

  Sooner than he had any right to expect, the seed that Alvin had planted was beginning to flower.

  The mountains were still swimming in shadow when they reached Shalmirane. From their height the great bowl of the fortress looked very small: it seemed impossible that the fate of Earth had once depended on that tiny ebon disk.

  When Alvin brought the ship to rest among the ruins, the desolation crowded upon him, chilling his soul. There was no sign of the old man or his machines, and they had some difficulty in finding the entrance to the tunnel. At the top of the stairway Alvin shouted to give warning of their arrival: there was no reply and they moved quietly forward, in case he was asleep.

  Sleeping he was, his hands folded peacefully upon his breast. His eyes were open, staring sightlessly up at the massive roof, as if they could see through to the stars beyond. There was a slight smile upon his lips: Death had not come to him as an enemy.

  14

  The two robots were beside him, floating motionless in the air. When Alvin tried to approach the body, their tentacles reached out to restrain him, so he came no nearer. There was nothing he could do: as he stood in that silent room he felt an icy wind sweep through his heart. It was the first time he had looked upon the marble face of Death, and he knew that something of his childhood had passed forever.