The Master and his machines possessed powers which the world had lost, and around him he gathered a group of men to whom he taught much wisdom. His personality must have been a very striking one, and Alvin could understand dimly the magnetism that had drawn so many to him. From the dying cities, men had come to Lys in their thousands, seeking rest and peace of mind after the years of confusion. Here among the forests and mountains, Hstening to the Master's words, they found that peace at last.

  At the close of his long life the Master had asked his friends to carry him out into the open so that he could watch the stars. He had waited, his strength waning, until the culmination of the Seven Suns. As he died the resolution with which he had kept his secret so long seemed to weaken, and he babbled many things of which countless books were to be written in future ages. Again and again he spoke of the "Great Ones" who had now left the world but who would surely one day return, and he charged his followers to remain to greet them when they came. Those were his last rational words. He was never again conscious of his surroundings, but just before the end he uttered one phrase that revealed part at least of his secret and had come down the ages to haunt the minds of all who heard it: "/f is lovely to watch the colored shadows on the planets of eternal light. " Then he died.

  So arose the religion of the Great Ones, for a religion it now became. At the Master's death many of his followers broke away, but others remained faithful to his teachings, which they slowly elaborated through the ages. At first they believed that the Great Ones, whoever they were, would soon return to Earth, but that hope faded with the passing centuries. Yet the brotherhood continued, gathering new members from the lands around, and slowly its strength and power increased until it dominated the whole of Southern Lys.

  It was very hard for Alvin to follow the old man's narrative. The words were used so strangely that he could not tell what was truth and what legend—if, indeed, the story held any truth at all. He had only a confused picture of generations of fanatical men, waiting for some great event which they did not understand to take place at some unknown future date.

  The Great Ones never returned. Slowly the power of the movement failed, and the people of Lys drove it into the mountains until it took refuge in Shalmirane. Even then the watchers did not lose their faith, but swore that however long the wait they would be ready when the Great Ones came. Long ago men had learned one way of defying Time, and the knowledge had survived when so much else had been lost. Leaving only a few of their number to watch over Shalmirane, the rest went into the dreamless sleep of suspended animation.

  Their numbers slowly falling as sleepers were awakened to replace those who died, the watchers kept faith with the Master. From his dying words it seemed certain that the Great Ones lived on the planets of the Seven Suns, and in later years attempts were made to send signals into space. Long ago the signaling had become no more than a meaningless ritual, and now the story was nearing its end. In a very little while only the three machines would be left in Shalmirane, watching over the bones of the men who had come here so long ago in a cause that they alone could understand.

  The thin voice died away, and Alvin's thoughts returned to the world he knew. More than ever before the extent of his ignorance overwhelmed him. A tiny fragment of the past had been illuminated for a little while, but now the darkness had closed over it again.

  The world's history was a mass of such disconnected threads, and none could say which were important and which were trivial. This fantastic tale of the Master and the Great Ones might be no more than another of the countless legends that had somehow survived from the civilizations of the Dawn. Yet the three machines were unlike any that Alvin had ever seen. He could not dismiss the whole story, as he had been tempted to do, as a fable built of self-delusion upon a foundation of madness.

  "These machines," he said abruptly, "surely they've been questioned? If they came to Earth with the Master, they must still know his secrets."

  The old man smiled wearily.

  ''They know," he said, "but they will never speak. The Master saw to that before he handed over the control. We have tried times without number, but it is useless."

  Alvin understood. He thought of the Associator in Diaspar, and the seals that Alaine had set upon its knowledge. Even those seals, he now believed, could be broken in time, and the Master Associator must be infinitely more complex than these little robot slaves. He wondered if Rorden, so skilled in unraveling the secrets of the past, would be able to wrest the machines' hidden knowledge from them. But Rorden was far away and would never leave Diaspar.

  Quite suddenly the plan came fully fledged into his mind. Only a very young person could ever have thought of it, and it taxed even Alvin's self-confidence to the utmost. Yet once the decision had been made, he moved with determination and much cunning to his goal.

  He pointed toward the three machines.

  "Are they identical?" he asked. "I mean, can each one do everything, or are they specialized in any way?"

  The old man looked a little puzzled.

  "I've never thought about it," he said. "When I need anything, I ask whichever is most convenient. I don't think there is any difference between them."

  "There can't be a great deal of work for them to do now," Alvin continued innocently. Theon looked a little startled, but Alvin carefully avoided his friend's eye. The old man answered guilelessly.

  "No," he replied sadly, "Shalmirane is very diff"erent now."

  Alvin paused in sympathy: then, very quickly, he began to talk. At first the old man did not seem to grasp his proposal: later, when comprehension came, Alvin gave him no time to interrupt. He spoke of the great storehouses of knowledge in Diaspar, and the skill with which the Keeper of the Records could use them. Although the Master's machines had withstood all other inquirers, they might yield their secrets to Rorden's probing. It would be a tragedy if the chance were missed, for it would never come again.

  Flushed with the heat of his own oratory, Alvin ended his appeal:

  "Lend me one of the machines—you do not need them all. Order it to obey my controls and I will take it to Diaspar. I promise to return it whether the experiment succeeds or not."

  Even Theon looked shocked, and an expression of horror came across the old man's face.

  "I couldn't do that!" he gasped.

  "But why not? Think what we might learn!"

  The other shook his head firmly.

  "It would be against the Master's wishes."

  Alvin was disappointed—disappointed and annoyed. But he was young, and his opponent was old and tired. He began again to go through the argument, shifting his attack and pressing home each advantage. And now for the first time Theon saw an Alvin he had never suspected before—a personality, indeed, that was surprising Alvin himself. The men of the Dawn Ages had never let obstacles bar their way for long, and the willpower and determination that had been their heritage had not yet passed from Earth. Even as a child Alvin had withstood the forces seeking to mold him to the pattern of Diaspar. He was older now, and against him was not the greatest city of the world but only an aged man who sought nothing but rest, and would surely find that soon.

  9

  The evening was far advanced when the ground-car slid silently through the last screen of trees and came to rest in the great glade of Airlee. The argument, which had lasted most of the journey, had now died away and peace had been restored. They had never quite come to blows, perhaps because the odds were so unequal. Theon had only Krif to support him, but Alvin could call upon the argus-eyed, many-tentacled machine he still regarded so lovingly.

  Theon had not minced his words. He had called his friend a bully and had told Alvin that he should be thoroughly ashamed of himself. But Alvin had only laughed and continued to play with his new toy. He did not know how the transfer had been effected, but he alone could control the robot now, could speak with its voice and see through its eyes. It would obey no one else in all the world.

  S
eranis was waiting for them in a surprising room which seemed to have no ceiling, though Alvin knew that there was a floor above it. She seemed to be worried and more uncertain than he had ever seen her before, and he remembered the choice that might soon lie before him. Until now he had almost forgotten it. He had believed that, somehow, the Council would resolve the difficulty. Now he realized that its decision might not be to his liking.

  The voice of Seranis was troubled when she began to speak, and from her occasional pauses Alvin could tell that she was repeating words already rehearsed.

  "Alvin," she began, "there are many things I did not tell you before, but which you must learn now if you are to understand our actions.

  "You know one of the reasons for the isolation of our two races. The fear of the Invaders, that dark shadow in the depths of every human mind, turned your people against the world and made them lose themselves in their own dreams. Here in Lys that fear has never been so great, although we bore the burden of the attack. We had a better reason for our actions, and what we did, we did with open eyes.

  "Long ago, Alvin, men sought immortality and at last achieved it. They forgot that a world which had banished death must also banish birth. The power to extend his life indefinitely brought contentment to the individual but stagnation to the race. You once told me that you were the only child to be born in Diaspar for seven thousand years—but you have seen how many children we have here in Airlee. Ages ago we sacrificed our immortality, but Diaspar still follows the false dream. That is why our ways parted— and why they must never meet again. "

  Although the words had been more than half-expected, the blow seemed none the less for its anticipation. Yet Alvin refused to admit the failure of all his plans—half-formed though they were—and only part of his brain was listening to Seranis now. He understood and noted all her words, but the conscious portion of his mind was retracing the road to Diaspar, trying to imagine every obstacle that could be placed in his way.

  Seranis was clearly unhappy. Her voice was almost pleading as it spoke, and Alvin knew that she was talking not only to him but to her own son. Theon was watching his mother with a concern which held at least more than a trace of accusation.

  "We have no desire to keep you here in Lys against your will, but you must surely realize what it would mean if our people mixed. Between our culture and yours is a gulf as great as any that ever separated Earth from its ancient colonies. Think of this one fact.

  Alvin. You and Theon are now of nearly the same age— but he and I will have been dead for centuries when you are still a boy. "

  The room was very quiet, so quiet that Alvin could hear the strange, plaintive cries of unknown beasts in the fields beyond the village. Presently he said, almost in a whisper:

  "What do you want me to do?"

  "I have put your case to the Council, as I promised, but the law cannot be altered. You may remain here and become one of us, or you may return to Diaspar. If you do that, we must first reshape the patterns of your mind so that you have no recollection of Lys and never again attempt to reach us."

  "And Rorden? He would still know the truth, even if I had forgotten everything."

  "We have spoken with Rorden many times since you left. He recognizes the wisdom of our actions."

  In that dark moment, it seemed to Alvin that the whole world had turned against him. Though there was much truth in the words of Seranis, he would not recognize it: he saw only the wreck of his still dimly conceived plans, the end of the search for knowledge that had now become the most important thing in his life.

  Seranis must have read his thoughts.

  "I'll leave you for a while," she said. "But remember—whatever your choice, there can be no turning back."

  Theon followed her to the door but Alvin called after him. He looked inquiringly at his mother, who hesitated for a moment and then nodded her head. The door closed silently behind her, and Alvin knew that it would not open again without her consent.

  Alvin waited until his racing thoughts were once more under control.

  "Theon," he began, "you'll help me, won't you?"

  The other nodded but did not speak.

  "Then tell me this—how could your people stop me if I tried to run away?"

  "That would be easy. If you tried to escape, my mother would take control of your mind. Later, when you became one of us, you would not wish to leave."

  "I see. Can you tell if she is watching my mind now?"

  Theon looked worried, but his protest answered the question.

  "I shouldn't tell you that!"

  "But you will, won't you?"

  The two boys looked silently at each other for many seconds. Then Theon smiled.

  "You can't bully me, you know. Whatever you're planning—and / can't read your mind—as soon as you tried to put it into action Mother would take over. She won't let you out of her sight until everything has been settled."

  "I know that," said Alvin, "but is she looking into my mind at this moment?"

  The other hesitated.

  "No, she isn't," he said at last. "I think she's deliberately leaving you alone, so that her thoughts won't influence you."

  That was all he needed to know. For the first time Alvin dared to turn his mind upon the only plan that offered any hope. He was far too stubborn to accept either of the alternatives Seranis had offered him, and even if there had been nothing at stake he would have bitterly resisted any attempt to override his will.

  In a little while Seranis would return. He could do nothing until they were in the open again, and even then Seranis would be able to control his actions if he attempted to run away. And apart from that, he was sure that many of the villagers could intercept him long before he reached safety.

  Very carefully, checking every detail, he traced out the only road that could lead him back to Diaspar on the terms he wished.

  Theon warned him when Seranis was near, and he quickly turned his thoughts into harmless channels. It had never been easy for her to understand his mind, and now it seemed to Seranis as if she were far out in space, looking down upon a world veiled with impenetrable clouds. Sometimes there would be a rift in the covering, and for an instant she could catch a glimpse of what lay beneath. She wondered what Alvin was trying to hide from her. For a moment she dipped into her son's mind, but Theon knew nothing of the other's plans. She thought again of the precautions she had taken: as a man may flex his muscles before some great exertion, she ran through the compulsion patterns she might have to use. But there was no trace of her preoccupation as she smiled at Alvin from the doorway.

  "Well," she asked, "have you made up your mind?"

  Alvin's reply seemed frank enough.

  "Yes," he said. "I will return to Diaspar."

  "I'm sorry, and I know that Theon will miss you. But perhaps it's best: this is not your world and you must think of your own people."

  With a gesture of supreme confidence, she stood aside to let Alvin pass through the door.

  "The men who can obliterate your memory of Lys are waiting for you: we expected this decision."

  Alvin was glad to see that Seranis was leading him in the direction he wished to go. She did not look back to see if he was following. Her every movement told him: "Try and run away if you like—my mind is more powerful than yours." And he knew that it was perfectly true.

  They were clear of the houses when he stopped and turned to his friend.

  "Good-bye, Theon," he said, holding out his hands. "Thank you for all you've done. One day I'll be back."

  Seranis had stopped and was watching him intently. He smiled at her even while he measured the tu^enty feet of ground between them.

  "I know that you're doing this against your will," he said, "and I don't blame you for it. I don't like what I'm doing, either." (That was not true, he thought. Already he was beginning to enjoy himself.) He glanced quickly around: no one was approaching and Seranis had not moved. She was still watching him, probably trying to pr
obe into his mind. He talked quickly to prevent even the outlines of his plan from shaping among his thoughts.

  "I do not believe you are right," he said, so unconscious of his intellectual arrogance that Seranis could not resist a smile. "It's wrong for Lys and Diaspar to remain apart forever: one day they may need each other desperately. So I am going home with all that I have learned— and I do not think that you can stop me. "

  He waited no longer, and it was just as well. Seranis never moved, but instantly he felt his body slipping from his control. The power that had brushed aside his own will was even greater than he had expected, and he realized that many hidden minds must be aiding Seranis. Helplessly he began to walk back toward the center of the village, and for an awful moment he thought his plans had failed.

  Then there came a flash of steel and crystal, and the metal arms closed swiftly around him. His body fought against them, as he had known it must do, but his struggles were useless. The ground fell away beneath him and he caught a glimpse of Theon, frozen by surprise with a foolish smile upon his face.

  The robot was carrying him a dozen feet above the ground, much faster than a man could run. It took Seranis only a moment to understand his ruse, and his struggles died away as she relaxed her control. But she was not defeated yet, and presently there happened that which Alvin had feared and done his best to counteract.

  There were now two separate entities fighting inside his mind, and one of them was pleading with the robot, begging it to set him down again. The real Alvin waited, breathlessly, resisting only a little against forces he knew he could not hope to fight. He had gambled: there was no way of telling beforehand if the machine could understand orders as complex as those he had given it. Under no circumstances, he had told the robot, must it obey any further commands of his until he was safely inside Diaspar. Those were the orders. If they were obeyed, Alvin had placed his fate beyond the reach of human interference.