For two days and nights the _Sky Maid_ moved steadily forward on her way. There was, of course, neither day nor night in the airless emptiness of outer space, but they kept routine hours on board. The whole atmosphere of the ship had brightened and changed since Ripon's utilization of magnetic force had proven practical. Even the slovenly crew went around with their shoulders straighter. The feeling of gloom and failure had been succeeded by one of optimism. Now the talk was of whether or not they would really get the desired radium salts on the Moon, and of what reward they would all receive when they got back to Earth. The watch off duty started a poker game based on notes against the rewards they all expected to get. Ahead of the _Sky Maid_, the Moon was now a vast disc that filled half the sky when seen from the control room ports. The bigger peaks and craters were visible to the naked eye now. Back in the after observation room, the dwindling but still vast profile of Earth had taken on a strange and unfamiliar appearance. It was a lonely feeling, to be so far from that friendly planet. Larry wondered how things were now going there, and what had caused the spread of the Gray Death in the first place. Probably a virus brought in on a meteor from some unknown and unhealthy planet. The hope of mankind resting within her rusty hull, the _Sky Maid_ slogged onward. By Earthly standards she was moving at a terrific speed, but compared with the velocity of heavenly bodies and the vastness of interplanetary space she crawled slowly across a small corner of the solar system. VI At last there came the hour when the ship hovered a few hundred miles above the surface of the Moon. Below them was a vast and uneven surface of barren and pitted rock, round craters and jagged peaks stretching to the horizon in all directions. Larry realized now how uneven the surface of the satellite really was, how different from the orange-peel appearance it had when seen through a telescope from Earth. All the crew were at landing stations. Ripon had adjusted his controls to hold the ship steady in space, and now he stepped back. "There's no use bothering with helicopters," he said. "Since there's no atmosphere here, they'd be useless. That's probably what wrecked the ships before us--you can't make an easy landing with rockets alone, and we have no padded landing platform." "Can't you lower her down easy with your magnetic control?" Larry asked. "That's what I hope to do, but we're not experienced and there may be a jolt. Cut off the reserve air tanks, and have all hands put on space suits."