He paused for a moment, and a slow, deep hum of surprize ran over the assembled members. For the first time, now, I saw that Mur Dak's keen, intellectual face was white and drawn, and I bent forward, breathless, tensely listening. In a moment the chairman was speaking on. "It is necessary for me to go back a little," he said, "in order that you may understand the situation which confronts us. As you know, our sun and its eight spinning planets are not motionless in space. Our sun, with its family of worlds, has for eons been moving through space at the approximate rate of twelve miles a second, across the Milky Way. You know, too, that all other suns, all other stars, are moving through space likewise, some at a lesser speed than ours and some at a speed inconceivably greater. Flaming new suns, dying red suns, cold dark suns, each is flashing through the infinities of space on its own course, each toward its appointed doom. "And among that infinity of thronging stars is that one which we know as Alto, that great red star, that dying sun, which has been steadily drawing nearer to us as the centuries have passed, and which is now nearest to us of all the stars. It is but little larger than our own sun, and as you all know, it and our own sun are moving toward each other, rushing nearer each other by thousands of miles each second, since Alto is moving at an unthinkable speed. Our scientists have calculated that the two suns would pass each other over a year from now, and thereafter would be speeding away from each other. There has been no thought of danger to us from the passing of this dying sun, for it has been known that its path through space would cause it to pass us at a distance of billions of miles. And had the star Alto but continued in that path all would have been well. But now a thing unprecedented has happened. "Some eight weeks ago the South Observatory on Mars reported that the approaching star Alto seemed to have changed its course a little, bearing inward toward the solar system. The shift was a small one, but any change of course on the part of a star is quite unprecedented, so for the last eight weeks the approaching star has been closely watched. And during those weeks the effect of its shift in course has become more and more apparent. More and more the star has veered from the path it formerly followed, until it is now many millions of miles out of its course, with its deflection growing greater every minute. And this morning came the climax. For this morning I received a telestereo message from the director of the Bureau of Astronomical Science, on Venus, in which he informed me that the star's change of course is disastrous, for us. For instead of passing us by billions of miles, as it would have done, the star is now heading straight toward our own sun. And our sun is racing to meet it!