burst out when he finished, a wild tempest of applause that raged over the hall with cyclonic fury for minutes. I was on my feet with the rest, by that time, shouting like a madman. It was the inevitable reaction from that moment of heart-deadening panic, was the uprush of the old will to conquer that has steeled the hearts of men in a thousand deadly perils. When it had died down a little, Mur Dak spoke again.

"It is not my purpose to allow death to rush upon us without an effort to turn it aside," he told us, "and fortune has placed in our hands, at this moment, the chance to strike out in our own defense. For the last three years Sarto Sen, one of our most brilliant young scientists, has been working on a great problem, the problem of using etheric vibrations as a propulsion force to speed matter through space. A chip floating in water can be propelled across the surface of the water by waves in it; then why should not matter likewise be propelled through space, through the ether, by means of waves or vibrations in that ether? Experimenting on this problem, Sarto Sen has been able to make small models which can be flashed through space, through the ether, by means of artificially created vibrations in that ether, vibrations which can be produced with as high a frequency as the light-vibrations, and which thus propel the models through space at a speed equal to the speed of light itself.

"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 

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