"Yeah," agreed Fuller. "Try again." "Or," Wade put in, "give me that weight annihilator and I'll beat you at your own game. What's the secret?" "That's a cute gadget. How much load does it carry?" asked Morey, more practically. "I can develop about ten tons as far as it goes, but the human body can't take more than five gravities, so we can only visit planets with less than that surface gravity. The principle is easy to see; I'll show you." He unhooked the cables and took the power pack from his back. "The main thing is the molecular power unit here, electrically heated and mounted on a small, massive gyroscope. That gyro is necessary, too. I tried leaving it out and almost took a nosedive. I had it coupled directly to the body and leaned forward a little bit when I was in the air. Without a gyro to keep the drive upright, I took a loop and started heading for the ground. I had to do some fancy gymnastics to keep from ending up six feet under--literally. "The power is all generated in the pack with a small power plate and several storage coils. I've also got it hooked to these holsters at my belt so we can charge the pistols while we carry them. "The control is this secondary power cable running down my arm to my hand. That gives you your direction, and the rheostat here at the belt changes the velocity. "I've only made this one so far, but I've ordered six others like it. I thought you guys might like one, too." "I think you guessed right!" said Morey, looking inside the power case. "Hey! Why all the extra room in the case?" "It's an unperfected invention as yet; we might want to put some more stuff in there for our own private use." Each of the men tried out the apparatus and found it quite satisfactory. Meanwhile, there was other work to be done. Wade had been given the job of gathering the necessary food and anything else in the way of supplies that he might think of. Arcot was collecting the necessary spare parts and apparatus. Morey was gathering a small library and equipping a chemistry laboratory. Fuller was to get together the necessary standard equipment for the ship--tables, seats, bunks, and other furniture. It took months of work, and it seemed it would never be finished, but finally, one clear, warm day in August, the ship was completely equipped and ready to go. On the last inspection, the elder Dr. Arcot and the elder Mr. Morey went with the four younger men. They stood beside the great intergalactic cruiser, looking up at its shining hull. "We came a bit later than we expected, son," said Dr. Arcot, "but we still expect a good show." He paused and frowned, "I understand you don't intend to take any trial trip. What's the idea?"