"Correct." Rip took the counter stylus and inscribed his name, serial number, and signature on the blank plastic sheet. Gears whirred as the data was recorded.

The spaceman vanished into an inner room and reappeared in a moment lugging a plastic case called a space pack, or "spack" for short. It contained complete personal equipment for space travel. Rip grabbed it. "Fast service. Thanks, Rocky." All spacemen were called "Rocky" if you didn't know their names. It was an abbreviation for rocketeer, a title all of them had once carried.

Valve Eight was some distance away. Rip decided a cross ramp would be faster than the moving track. He swung the spack to his shoulder and made his legs go. Seconds were ticking off, and he had an idea that the SCN Scorpius would make space on time, whether or not he arrived. He lengthened his stride and rounded a turn by going right up on the wall, using a powerful leg thrust against a ventilator tube for momentum.

He passed an observation port as he reached the platform rim, and caught a glimpse of ruddy rocket exhaust flames outlined against the dark curve of Earth. That would be the Terra rocket making its controlled fall to home, with Flip aboard. Without slowing, he leaped across the high-speed track, narrowly missing a senior space officer. He shouted his apologies, and gained the entrance to Valve Eight just as the high buzz of the radiation warning sounded, signaling a nuclear drive cruiser preparing to take off.

Nine faces of assorted colors and expressions turned to him. He had a quick impression of black tunics and trousers. He had found his detachment! Without slowing, he called, "Follow me!"

The cruiser's safety officer had been keeping an eye on the clock, his forehead creased in a frown as he saw that only a few seconds remained to departure time. He walked to the valve opening and looked out. If his passengers were not in sight, he would have to reset the clock.

Rip went through the valve opening at top speed. He crashed head on into the safety officer.

The safety officer was driven across the deck, his arms pumping for balance. He grabbed at the nearest thing, which happened to be the deputy cruiser commander.

The preset clock reached firing time. The valve slid shut and the takeoff bell reverberated through the ship.

And so it happened that the spacemen of the SCN Scorpius turned their valves, threw their controls and disengaged their boron control rods, and the great cruiser flashed into space—while the deputy commander and the safety officer were completely tangled with a very flustered and unhappy new Planeteer lieutenant.