Some minutes later, Rob and his crewmates solemnly followed the stretcher bearers out of the ship. Through the plastic airtight case Rob could see the still-as-death figure of the burr-headed mechanic who had risked his life for his friends. The party trooped across the ice slick that lay between the X-500 and Space Command headquarters on Titan. General Carmichael met the group inside the air lock of the headquarters. His small, sharp eyes looked out from under thick gray brows at the identically dressed men before him, streams of condensed vapor rolling off their glossy suits. Rob pulled off his helmet and advanced. “I’m Allison, sir,” he said, offering his hand. The wiry general shook hands briskly. “Glad to meet you, Allison.” He frowned. “We’ve got a lot to do, so we may as well get started.” General Carmichael led them into his private office. “Your mechanic replacement will be over shortly,” the officer told them when they were seated. “His name is Olney. A good man. You’re lucky he was available. We’re kind of shorthanded here and really can’t spare anyone. None of us on the project thought your crew would have to be replaced at this final stage, but of course accidents can’t be avoided.” Rob glanced over at Clay Gerard. Rob thought he detected a flicker of hope in the youth’s eyes. Rob pondered deeply, wondering if he should go ahead with the replacement of Clay as he had said he would do. But it wouldn’t be easy to explain Clay to General Carmichael. Giving the appearance to Rob of being a strict old-timer, the chief officer did not look to be too understanding a person on a matter such as this. Then too, he had said he simply had no other men to spare. And yet Rob knew he must consider his other crewmen. If Clay were unreliable, what right had he to risk their lives just to give a mixed-up young fellow another chance? Rob didn’t know what to do, so he looked to his friends for advice. He resolved to act on their judgment, since they were older men. Rob caught Lieutenant Swenson’s eye. To his wordless inquiry, the navigator-radiation officer nodded. Lieutenant Fox did the same. The silent vote had given the impetuous Clay Gerard another chance, and for some reason Rob was glad that it had come out this way. Clay, who had been watching the other raptly, knew he had been reinstated, and he smiled his gratitude. General Carmichael handed each of them pencil-like tubes which he told them they would wear in their upper blouse pockets at all times during the flight. “These instruments record cosmic-ray radiation,” the general said. “As you know, a concentration of these rays will cause agonizing death. You will be the first crew ever to carry C-bombs on a mission because fortunately we’ve never had to use them before.” Less than an hour and a half later, the Cetus X-500 was ready to go. General Carmichael replaced the charts given Rob by General Forester with ones carrying figures for the accelerated moment of departure.