The colossal thing, indescribable, a blinding, nameless color, rippled down the hall and stooped before a disk of silvery black. In the center of the disk was a metal seat with a control board near-by. "Be seated!" Phobar sat down, the titan flicked the controls--and nothing happened. Phobar sensed that something was radically wrong. He felt the surprise of his gigantic companion. He did not know it then, but the fate of the solar system hung on that incident. "Come!" * * * * * Abruptly the giant stooped, and Phobar shrank back, but a flowing mass of cold, insensate metal swept around him, lifted him fifty feet in the air. Dizzy, sick, horrified, he was hardly conscious of the whirlwind motion into which the giant suddenly shot. He had a dim impression of machines racing by, of countless other giants, of a sudden opening in the walls of the immense building, and then a rush across the surface of metal land. Even in his vertigo he had enough curiosity to marvel that there was no vegetation, no water, only the dull black metal everywhere. Yet there was air. And then a city loomed before them. To Phobar it seemed a city of gods or giants. Fully five miles it soared toward space, its fantastic angles and arcs and cubes and pyramids mazing in the dimensions of a totally alien geometry. Tier by tier the stupendous city, hundreds of miles wide, mounted toward a central tower like the one in the building he had left. Phobar never knew how they got there, but his numbed mind was at last forced into clarity by a greater will. He stared about him. His captor had gone. He stood in a huge chamber circling to a dome far overhead. Before him, on a dais a full thousand feet in diameter, stood--sat--rested, whatever it might be called--another monster, far larger than any he had yet seen, like a mountain of pliant thinking, living metal. And Phobar knew he stood in the presence of the ruler. * * * * * The metal Cyclops surveyed him as Phobar might have surveyed an ant. Cold, deadly, dispassionate scrutiny came from something that might have been eyes, or a seeing intelligence locked in a metal body. There was no sound, but inwardly to Phobar's consciousness from the peak of the titan far above him came a command: "What are you called?" Phobar opened his lips--but even before he spoke, he knew that the thing had understood his thought: "Phobar." "I am Garboreggg, ruler of Xlarbti, the Lord of the Universes." "Lord of the _Universes_?" "I and my world come from one of the universes beyond the reach of your telescopes." Phobar somehow felt that the thing was talking to him as he would to a new-born babe. "What do you want of me?" "Tell your Earth that I want the entire supply of your radium ores mined and placed above ground according to the instructions I give, by seven of your days hence."