In excited impatience the Earthman waited. Now and then he tapped short messages of encouragement to Jan. Would Hekalu never come? The strain of suspense was not exactly pleasant. Finally, unable to contain himself any longer, he rose from the bunk where he had been reclining in readiness for the first move of the coup he was planning, and began to pace the floor.
He chanced to glance out of the window. On the railed walk beyond, a man clad in space armor was bending over a small portable case which was supported on a tripod. Shelby surmised correctly that this man was Hekalu Selba.
Beside him, paying close attention to whatever the Martian was doing, stood the black Alkebar. The Earthman frowned in puzzlement, almost in awe. For Hekki's weird companion wore nothing that would be of the least help in protecting him from interplanetary cold and lack of air pressure. Not even an oxygen helmet! And yet, as the monster examined interestedly, every dial and switch that Hekalu touched, he showed not the slightest hint of discomfort. The airless emptiness of space seemed home to him. How could such things be? A strange thrill tingled and vibrated along Shelby's spine when he realized how alien was Alkebar. There was no kinship between him and the creatures of either Earth or Mars.
Presently Hekki looked up, and as though moved by some intuitive realization that he was being watched, turned awkwardly in his cumbersome attire, and glanced along the row of portholes in the side of the vessel. He saw the Earthman and smiled at him. Shelby felt that it was the kind of smile which a tolerant father might show to his youngest son. Hekalu waved his hand, and his lips, behind the glazed front of the helmet, formed several words which Shelby could not interpret. Then the Martian returned his attention to his apparatus.
When Selba entered his prisoner's room some moments later, he found him lounging on the bunk.
The Martian looked enquiringly at Shelby. "You have reached some conclusion, my friend?" he asked.
Without changing his position on the bunk the young man nodded. There was an expression of dejection and sullen resignation on his face which he was trying hard, above the intense excitement which possessed him, to make realistic. Still acting the part he spoke: "Yes, Akar Hekalu," he said between teeth that were apparently gritted with rage, "I have decided to reveal to you the secret of the Atomic Ray."
A triumphant gleam came into the Martian's eyes. "Ah, my friend," he said, "you at last see the light. I knew that you would. But what has been the cause for this sudden change in attitude? The torture chamber, perhaps?" There was an undercurrent of suspicion in Hekalu's voice.
Shelby turned his head sullenly away, feigning shame. He said nothing. A minute passed during which time Hekalu stared at his captive, a sardonic smirk of contempt curling his thin coral lips.