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 disc.

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.

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