for him and was waiting. Randy still looked worried. He'd tried hard for the job for himself, but now he was afraid that his friend McCauley might not check out. That the rocket might not check out. That when he got up there something might go wrong. That coming down would be bad. "Soft-boiled," said McCauley appreciatively, breaking an egg. "My favorite fruit!" "Do you really feel okay, Ed?" asked Randy. McCauley grinned again, which was answer enough. Maybe he felt too good. He probably should tone down a little. After all, this shoot with a man as the payload wasn't a pleasure trip. It was research. It was an operation to verify other research. The medicos believed they knew what the psychological, physiological, and emotional effects of long-continued weightlessness would be. They needed to know how a normal man like McCauley would react to the unparalleled environment of nearer space. It was high-altitude research, primarily to enable planes to fly faster. A plane could be powered right now so that its wings would melt at sea level because of the heat its speed produced. The only way to reach theoretical top speed in a plane was to fly it away up. There was a thermal barrier to really high-speed flight. The only way around this barrier was over it, and it was necessary to find out how a man would make out in that detour. The Service had a long-established custom of spending a dollar instead of a man; now it had not to spend a man perhaps, but to risk one. And McCauley was the man. He felt remarkably good, knowing that presently he should be where no man had ever been before, seeing with his own eyes that the earth was round. It struck him suddenly that everybody else in the world had only indirect evidence for believing this. He'd be the first man to know this for a fact simply because he'd gone up to where he would see the earth as a ball. "No shivers?" asked Randy presently, as if in envy. "Wouldn't you rather not and say you did? I'll take over for you!" "Don't tempt me!" said McCauley, pushing his cup across the table. "And how about some more coffee?" Randy grunted. Maybe he'd been ordered to do some kidding, so McCauley wouldn't get the wind up. But it didn't matter to Ed. If only everything went all right at the blockhouse everything would have to go all right all along the line. But the chance that things might be fouled up there made him want to keep his fingers crossed. Yes. The blockhouse was the big hurdle. Anything that