evident that, as my friend had informed me, the Council had just assembled, since for the moment Mur Dak was not speaking, but just gazing calmly out over the silent rows of members. In a moment we had passed down the aisle to his dais and stood beneath him. To my salute he returned a word of greeting only, then motioned us to two empty seats which had apparently been reserved for us. As I slipped into mine I wondered, fleetingly, what big Hal Kur would have thought to see his captain thus taking a seat with the Supreme Council itself. Then that thought slipped from my mind as Mur Dak began to speak. "Men of the Eight Worlds," he said slowly, "I have called this session of the Council for the gravest of reasons. I have called it because discovery has just been made of a peril which menaces the civilization, the very existence, of all our race—a deadly peril which is rushing upon us with unthinkable speed, and which threatens the annihilation of our entire universe!" 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