thousand military personnel and half that many scientists and techs: a tough job, and one that he was giving his best. After returning Major Lance Cooper's brisk salute, the colonel unbent and gave his prospective son-in-law a hardy handshake. "Lance, I hope you'll be able to keep more of a rein on this little space-filly of mine, than I've been able to. She was determined to see you off." "I was glad to see her, colonel." The colonel smiled. "Can't think of a man on this base I'd rather turn Carolyn over to." "Thank you, sir," said Lance. "Been counting the minutes to take-off, I suppose?" "He's hardly had a chance to, Dad," Carolyn broke in. "What with me in his hair!" One of the colonel's aides glanced at his watch, then opened up a brief case and took out a sealed envelope. The colonel relieved him of it and handed it to Lance. "Your flight orders, Lance. Got the preset tapes installed and checked?" "Yes, sir." "Well, you should know your onions now, if you're ever going to. Best of luck, son." "Thank you, colonel." Lance turned. "Good-by, Carolyn. Just four weeks now, like I said." "I'll be waiting." "First jump's always the hardest, I hear," spoke up the second aide, cheerily. Like a great many other execs, the officer boasted no active space rating, though he did wear the winged moons of an observer. But Lance and Carolyn were again quite busy, and did not hear. Inside the shell of the Cosmos XII, Lance, sitting flat on his back against gravity, looked up at the sweep hands on the control deck clocks and hurried through his pre-jump check list. Tension mounted inside him. He contacted the Operations people in the bunker over