Then they were standing in the brilliant light of the amphitheatre, and the Duca, surrounded by his caciques, was advancing to meet them. It was not a long conference which followed. Kirby saw from the start that the Duca was indeed ready to come to terms. So treasured an object, it seemed, was the cylinder of gold, that the mere fact that Kirby possessed it made the Duca respect the possessor, whether he would or no. With this initial advantage, it did not take long to make demands and win acceptance. It was agreed that some systematic campaign of extermination should be planned and carried out against the ape-men. Further, the project for eventually bringing other upper-world men to the realm was accepted. Most notable of all, it was agreed that while the Duca should retain a voice in the regulation of temporal affairs, Kirby should possess an absolute veto over his word. Naida said there must be some formal ceremony to celebrate Kirby's ascendency to power. To this the Duca consented, and established the date as a fortnight hence, and the place as the temple on the plateau beyond the plateau of the castle, where the Ducas had been invested with their robes of state from time immemorial. At the end, it was decided that little Elana should be left in the prayer chamber until a burial ceremony could be held on the morrow. * * * * * In less than an hour, Kirby, Naida, and the others withdrew from the amphitheatre to return to the regular dwelling places of the girls. Deep in his mind, Kirby did not know how sincere the Duca was, and fear lingered, somehow, but he put it aside for the present. As they came out of the castle, proceeding in a gay procession across the drawbridge above the moat of beautiful aquatic plants, Kirby saw that the light from the glass sky was fading to a glow like that of spring twilight in the upper world. Naida answered his question about the phenomenon by saying that day and night in the cavern corresponded to the same period above. What quality of the glass sky gave out light, she did not know, but it seemed definite that the element was sensitive to the presence of light in the upper world, and when the sun sank there, the glow faded here. A flower embroidered path led them around the castle to a group of little crystalline houses all overgrown with bougainvillea vines and honeysuckle. In front of the first, Naida paused, and while the others went on to the other houses, she looked at Kirby. "It is Elana's dwelling," she said simply, "and it will be vacant now. Elana would want you to take it. Will you, please?" The twilight was deepening swiftly. Kirby nodded reverently, then drew close to Naida. "Naida?" "Yes?" He took her hand. "I can stay here, I can consent to become, after a fashion, a King, only if you will reign with me as Queen. Will you, Naida? Will you love me as I have learned to love you during this single day in Paradise?"