"Using this principle, Sarto Sen has constructed a small ten-man cruiser, which can attain the velocity of light and which he has intended to use in a voyage of exploration to the nearer stars. Until now, as you know, we have been unable to venture outside the solar system, since even the swiftest of our gravity-screen space-ships can not make much more than a few hundred thousand miles an hour, and at that rate it would take centuries to reach the nearest star. But in this new vibration-propelled cruiser, a voyage to the stars would be a matter of weeks, instead of centuries. "Several hours ago I ordered Sarto Sen to bring his new cruiser here to the Hall of Planets, fully equipped, and at this moment it is resting in one of the landing-courts here, manned by a crew of six men experienced in its operation and ready for a trip of any length. And it is my proposal that we send this new cruiser, in this emergency, out to the approaching star Alto, to discover what forces or circumstances have caused the nearing sun to veer from its former path. We know that those forces or those circumstances must be extraordinary in character, thus to change the course of a star; and if we can discover what phenomena are the causes of the star's deflection, there is a chance that we might be able to repeat or reverse those phenomena, to swerve the star again from the path it now follows, and so save our solar system, our universe." Mur Dak paused for a moment, and there was an instant of sheer, stunned silence in the great hall. For the audacity of his proposal was overwhelming, even to us who roamed the limits of the solar system at will. It was well enough to rove the ways of our own universe, as men had done for ages, but to venture out into the vast gulf beyond, to flash out toward the stars themselves and calmly investigate the erratic behavior of a titanic, thundering sun, that was a proposal that left us breathless for the moment. But only for the moment, for when our brains had caught the magnitude of the idea another wild burst of applause thundered from the massed members, applause that rose still higher when the chairman called Sarto Sen himself to the dais and presented him to the assembly. Then, when the tumult had quieted a little, Mur Dak went on. "The cruiser will start at once, then," he said, "and there remains but to choose a captain for it. Sarto Sen and his men will have charge of the craft's operation, of course, but there must be a leader for the whole expedition, some quick-thinking man of action. And I have already chosen such a man, subject to your approval, one whose name most of you have heard. A man young in years who has served most of his life in the Interplanetary Patrol, and who distinguished himself highly two years ago in the great space-fight with the interplanetary pirates off Japetus: Jan Tor!"