Sally looked at him with soft eyes. It wasn't really his job, this worrying. The top-level brains of the armed forces were struggling with it. They were trying everything from redesigned rocket motors to really radical notions. But there wasn't anything promising yet. "What's really needed," said Sally regretfully, "is a way for ships to go up to the Platform and not have to come back." "Sure!" said Joe ironically. Then he said, "Let's go down!" They started down the long, winding ramp which led between the two skins of the Shed's wall. It was quite empty, this long, curving, descending corridor. It was remarkably private. In a place like the Shed, with frantic activity going on all around, and even at Major Holt's quarters where Sally lived and Joe was a guest, there wasn't often a chance for them to talk in any sort of actual privacy. But Joe went on, scowling. Sally went with him. If she seemed to hang back a little at first, he didn't notice. Presently she shrugged her shoulders and ceased to try to make him notice that nobody else happened to be around. They made a complete circuit of the Shed within its wall, Joe staring ahead without words. Then he stopped abruptly. His expression was unbelieving. Sally almost bumped into him. "What's the matter?" "You had it, Sally!" he said amazedly. "You did it! You said it!" "What?" "The touch of genius!" He almost babbled. "Ships that can go up to the Platform and not have to come back! Sally, you did it! You did it!" She regarded him helplessly. He took her by the shoulders as if to shake her into comprehension. But he kissed her exuberantly instead. "Come on!" he said urgently. "I've got to tell the gang!" He grabbed her hand and set off at a run for the bottom of the ramp. And Sally, with remarkably mingled emotions showing on her face, was dragged in his wake. He was still pulling her after him when he found the Chief and Haney and Mike in the room at Security where they were practically self-confined, lest their return to Earth become too publicly known. Mike was stalking up and down with his hands clasped behind his back, glum as a miniature Napoleon and talking bitterly. The Chief was sprawled in a chair. Haney sat upright regarding his knuckles with a thoughtful air. Joe stepped inside the door. Mike continued without a pause: "I tell you, if they'll only use little guys like me, the cabin and supplies and crew can be cut down by tons! Even the instruments can be smaller and weigh less! Four of us in a smaller cabin, less grub and air and water--we'll save tons in cabin-weight alone! Why can't you big lummoxes see it?" "We see it, Mike," Haney said mildly. "You're right. But people won't do it. It's not fair, but they won't." Joe said, beaming, "Besides, Mike, it'd bust up our gang! And Sally's just gotten the real answer! The answer is for ships to go up to the Platform and not come back!"