They followed their captor through a doorway into an empty room--empty save for one blue-clad individual who stood beside an instrument board let into the wall. Beyond was a long wall, where circular openings yawned huge and black. The one at the instrument panel received a curt order: the weird voice of the man in red repeated a word that stood out above his curious, wordless tone. "Torg," he said, and again McGuire heard him repeat the syllable. The operator touched here and there among his instruments, and tiny lights flashed; he threw a switch, and from one of the black openings like a deep cave came a rushing roar of sound. It dropped to silence as the end of a cylindrical car protruded into the room. A door in the metal car opened, and their guard hustled them roughly inside. The one in red followed while behind him the door clanged shut. Inside the car was light, a diffused radiance from no apparent source, the whole air was glowing about them. And beneath their feet the car moved slowly but with a constant acceleration that built up to tremendous speed. Then that slackened, and Sykes and McGuire clung to each other for support while the car that had been shot like a projectile came to rest. "Whew!" breathed the lieutenant; "that was quick delivery." Sykes made no reply, and McGuire, too, fell silent to study the tremendous room into which they were led. Here, seemingly, was the stage for their next experience. A vast open hall with a floor of glass that was like obsidion, empty but for carved benches about the walls; there was room here for a mighty concourse of people. The walls, like those they had seen, were decorated crudely in glaring colors, and embellished with grotesque designs that proclaimed loudly the inexpert touch of the draughtsman. Yet, above them, the ceiling sprang lightly into vaulted, sweeping curves. McGuire's training had held little of architecture, yet even he felt the beauty of line and airy gracefulness of treatment in the structure itself. * * * * * The contrast between the flaunting colors and the finished artistry that lay beneath must have struck a discordant note to the scientist. He leaned closer to whisper. "It is all wrong some way--the whole world! Beauty and refinement--then crude vulgarity, as incongruous as the people themselves--they do not belong here." "Neither do we," was McGuire's reply; "it looks like a tough spot that we're in." He was watching toward a high, arched entrance across the room. A platform before it was raised some six feet above the floor, and on this were seats--ornate chairs, done in sweeping scrolls of scarlet and gold. A massive seat in the center was like the fantastic throne of a child's fairy tale. From the corridor beyond that entrance came a stir and rustling that rivetted the man's attention.