«Very well. I am still supposed to be your tutor, but it seems that the roles are now reversed. Where are you taking me?»
«We are going to the Tower of Loranne, and I am going to show you the world outside Diaspar.»
Jeserac paled, but he stood his ground. Then, as if not trusting himself with words, he gave a stiff little nod and followed Alvin out onto the smoothly gliding surface of the moving way.
Jeserac showed no fear as they walked along the tunnel through which that cold wind blew forever into Diaspar. The tunnel had changed now; the stone grille that had blocked access to the outer world was gone. It served no structural purpose, and the Central Computer had removed it without comment at Alvin’s request. Later, it might instruct the monitors to remember the grille again and bring it back into existence. But for the moment the tunnel gaped unfenced and unguarded in the sheer outer wall of the city.
Not until Jeserac had almost reached the end of the air shaft did he realize that the outer world was now upon him. He looked at the widening circle of sky, and his steps became more and more uncertain until they finally slowed to a halt. Alvin remembered how Alystra had turned and fled from this same spot, and he wondered if he could induce Jeserac to go any further.
«I am only asking you to look,» he begged, «not to leave the city. Surely you can manage to do that!»
In Airlee, during his brief stay, Alvin has seen a mother teaching her child to walk. He was irresistibly reminded of this as he coaxed Jeserac along the corridor, making encouraging remarks as his tutor advanced foot by reluctant foot. Jeserac, unlike Khedron, was no coward. He was prepared to fight against his compulsion, but it was a desperate struggle. Alvin was almost as exhausted as the older man by the time he had succeeded in getting Jeserac to a point where he could see the whole, uninterrupted sweep of the desert.
Once there, the interest and strange beauty of the scene, so alien to all that Jeserac had ever known in this or any previous existence, seemed to overcome his fears. He was clearly fascinated by the immense vista of the rolling sand dunes and the far-off, ancient hills. It was late afternoon, and in a little while all this land would be visited by the night that never came to Diaspar.
«I asked you to come here,» said Alvin, speaking quickly as if he could hardly control his impatience, «because I realize that you have earned more right than anyone to see where my travels have led me. I wanted you to see the desert, and I also want you to be a witness, so that the Council will know what I have done.»
«As I told the Council, I brought this robot home from Lys in the hope that the Central Computer would be able to break the block that has been imposed on its memories by the man known as the Master. By a trick which I still don’t fully understand, the Computer did that. Now I have access to all the memories in this machine, as well as to the special skills that had been designed into it. I’m going to use one of those skills now. Watch.»
On a soundless order which Jeserac could only guess, the robot floated out of the tunnel entrance, picked up speed and within seconds was no more than a distant metallic gleam in the sunlight. It was flying low over the desert, across the sand dunes that lay crisscrossed like frozen waves. Jeserac had the unmistakable impression that it was searching-though for what, he could not imagine.
Then, abruptly, the glittering speck soared away from the desert and came to rest a thousand feet above the ground. At the same moment, Alvin gave an explosive sigh of satisfaction and relief. He glanced quickly at Jeserac, as if to say: «This is it!»
At first, not knowing what to expect, Jeserac could see no change. Then, scarcely believing his eyes, he saw that a cloud of dust was slowly rising from the desert.
Nothing is more terrible than movement where no movement should ever be again, but Jeserac was beyond surprise or fear as the sand dunes began to slide apart. Beneath the desert something was stirring like a giant awakening from its sleep, and presently there came to Jeserac’s ears the rumble of falling earth and the shriek of rock split asunder by irresistible force. Then, suddenly, a great geyser of sand erupted hundreds of feet into the air and the ground was hidden from sight.
Slowly the dust began to settle back into a jagged wound torn across the face of the desert. But Jeserac and Alvin still kept their eyes fixed steadfastly upon the open sky, which a little while ago had held only the waiting robot. Now at last Jeserac knew why Alvin had seemed so indifferent to the decision of the Council, why he had shown no emotion when he was told that the subway to Lys had been closed.
The covering of earth and rock could blur but could not conceal the proud lines of the ship still ascending from the riven desert. As Jeserac watched, it slowly turned toward them until it had foreshortened to a circle. Then, very leisurely, the circle started to expand.
Alvin began to speak, rather quickly, as if the time were short.
«This robot was designed to be the Master’s companion and servant-and, above all, the pilot of his ship Before he cams to Lys, he landed at the Port of Diaspar, which now lies out there beneath those sands. Even in his day, it must have been largely deserted; I think that the Master’s ship was one of the last ever to reach Earth. He lived for a while in Diaspar before he went to Shalmirane; the way must still have been open in those days. But he never needed the ship again, and all these ages it has been waiting out there beneath the sands. Like Diaspar itself, like this robot-like everything that the builders of the past considered really important-it was preserved by its own eternity circuits. As long as it had a source of power, it could never wear out or be destroyed; the image carried in its memory cells would never fade, and that image controlled its physical structure.»
The ship was now very close, as the controlling robot guided it toward the tower. Jeserac could see that it was about a hundred feet long and sharply pointed at both ends. There appeared to be no windows or other openings, though the thick layer of earth made it impossible to be certain of this.
Suddenly they were spattered with dirt as a section of the hull opened outward, and Jeserac caught a glimpse of a small, bare room with a second door at its far end. The ship was anging only a foot way from the mouth of the air vent, which it had approached very cautiously like a sensitive, living thing.
«Good-bye, Jeserac,» said Alvin. «I cannot go back into Diaspar to say farewell to my friends: please do that for me. Tell Eriston and Etania that I hope to return soon; if I do not, I am grateful for all that they did. And I am grateful to you, even though you may not approve of the way I have applied your lessons.
«And as for the Council-tell it that a road that has once been opened cannot be closed again merely by passing a resolution.»
The ship was now only a dark stain against the sky, and of a sudden Jeserac lost it altogether. He never saw its going, but presently there echoed down from the heavens the most awe-inspiring of all the sounds that Man has ever madethe long-drawn thunder of air falling, mile after mile, into a tunnel of vacuum drilled suddenly across the sky.
Even when the last echoes had died away into the desert, Jeserac never moved. He was thinking of the boy who had gone-for to Jeserac, Alvin would always be a child, the only one to come into Diaspar since the cycle of birth and death had been broken, so long ago. Alvin would never grow up; to him the whole Universe was a plaything, a puzzle to be unraveled for his own amusement. In his play he had now found the ultimate, deadly toy which might wreck what was left of human civilization-but whatever the outcome, to him it would still be a game.