I took the military cloak which Doriza had lent me and slung it over my shoulders. Turning, I clanked out on my metal-soled shoes. Sporr was waiting in the room where I had eaten. His eyes widened at sight of me, something like a grin of triumph flashed through his beard. Then he bowed, supple and humble, his palms together. "It is indeed Yandro, our great chief," he mumbled. Then he turned and crossed the room. A sort of mouthpiece sprouted from the wall. "I announce," he intoned into it. "I announce, I, Sporr, the reader and fore-teller of wisdom. Yandro is with us, he awaits his partners and friends. Let them meet him in the audience hall." Facing me again, he motioned most respectfully toward the door to the hall. I moved to open it, and he followed, muttering. Outside stood Doriza. Her blue eyes met mine, and her lips moved to frame a word. Then, suddenly, she was on her knee, catching my hand and kissing it. "I serve Yandro," she vowed tremulously. "Now and forever—and happy that I was fated to live when he returned for the rescue of all Dondromogon." "Please get up," I bade her, trying not to sound as embarrassed as I felt. "Come with me. There is still much that I do not understand." "I am Yandro's orderly and helper," she said. Rising, she ranged herself at my left hand. "Will Yandro come this way? He will be awaited in the audience hall." It seemed to me then that the corridors were vast and mixed as a labyrinth, but Doriza guided me without the slightest hesitation past one tangled crossway after another. My questions she answered with a mixture of awe and brightness. "It is necessary that we live like this," she explained. "The hot air of Dondromogon's sunlit face is ever rising, and the cold air from the dark side comes rushing under to fill the vacuum. Naturally, our strip of twilight country is never free of winds too high and fierce to fight. No crops can grow outside, no domestic animals flourish. We must pen ourselves away from the sky and soil, with stout walls and heavy sunken parapets. Our deep mines afford every element for necessities of life." I looked at my garments, and hers. There were various kinds of fabric, which I now saw plainly to be synthetic. "The other side, where those you call the Newcomers dwell and