The luminous Opalescence that has almost destroyed us is but one of its minor manifestations. It is a message of sinister intelligence; for back of it all is an Intelligence. Yet it is not all sinister. It is self-preservation. The time is coming when eons of ages from now our own man will be forced to employ just such a weapon for his own preservation. Either that or we shall die of thirst and agony. Let me ask you to remember now, that whatever you have suffered, you have saved a world. I shall now save you and the earth. In the vaults you will find everything. All the knowledge and discoveries of the great Dr. Robold, plus a few minor findings by myself. And now I bid you farewell. You shall soon be free. Charley Huyck. A strange message. Spoken over the wireless and flashed to every clime, it roused and revived the hope of mankind. Who was this Charley Huyck? Uncounted millions of men had never heard his name; there were but few, very few who had. A message out of nowhere and of very dubious and doubtful explanation. Celestial kinetics! Undoubtedly. But the words explained nothing. However, man was ready to accept anything, so long as it saved him. For a more lucid explanation we must go back to the Arizona observatory and Professor Ed. Williams. And a strange one it was truly; a certain proof that consciousness is more potent, far more so than mere material; also that many laws of our astronomers are very apt to be overturned in spite of their mathematics. Charley Huyck was right. You cannot measure intelligence with a yard-stick. Mathematics do not lie; but when applied to consciousness they are very likely to kick backward. That is precisely what had happened. The suddenness of Huyck’s departure had puzzled Professor Williams; that, and the note which he found upon the table. It was not like Charley to go off so in the stress of a moment. He had not even taken the time to get his hat and coat. Surely something was amiss. He read the note carefully, and with a deal of wonder. “Look these up. Keep by the lens. If the world goes up you will know I have not reached the mountain.” What did he mean? Besides, there was no data for him to work on. He did not know that an errant breeze had plumped the information behind the bookcase. Nevertheless he went into the observatory, and for the balance of the night stuck by the lens. Now there are uncounted millions of stars in the sky. Williams had nothing to go by. A needle in the hay-stack were an easy task compared with the one that he was allotted. The flaming mystery, whatever it was that Huyck had seen, was not caught by the professor. Still, he wondered. “If the world goes up you will know I have not reached the mountain.” What was the meaning?