I asked no questions. Tad and Arturo were busy. I sat, with pounding heart, watching, listening, wondering. Nereid sat near me; I could feel the gaze of her solemn eyes. We had slid from the rocks; we were under the water. Sinking--rolling forward, or downward, I could not tell which. * * * * * Arturo stood for a moment before me. “We’ll be throwing on the pressure presently. Hold steady, Jeff; it will be strange at first.” “Arturo, see here--” He smiled. “It’s difficult, making sure of our direction. Nereid, you know the way--will you watch with us?” She nodded, rose, and stood across the disk by the instrument table. Tad was there, and the figure of another man. I had not yet seen him closely. A slim fellow dressed in the brief black suit. His arms and legs gleamed pink-white; he sat now by the instruments, his hands roving them, his gaze intent on a bank of dials illumined with a vague purple sheen. Arturo called, “Entt! Oh, Entt, can you come here a moment?” He rose and Tad quickly took his place. He stood before me a delicate-looking, almost girlish fellow. He might have weighed a hundred pounds. A trifle taller than Nereid, slim and straight and smooth pink-white of skin. He stood smiling--a hand shading his wide blue eyes from the light. A handsome fellow; twenty years old perhaps. “Entt, this is Jeff, our friend.” He held out his hand. “I am glad.” He spoke like Nereid; he had indeed her strange look. I shook his hand, and said impulsively, “Are you Nereid’s brother?” “No--just--her friend.” His face was smooth as though no razor had ever touched it. His brown hair was clipped close. I liked him at once, this Entt. Gentle, deprecating, but there was a strength to him. The muscles of his arms and shoulders rippled under the satin of his skin. He turned away. “I must go back, Arturo.” Arturo said, “He’s been a real friend--there is so much we have to tell you, Jeff. But not now. When we get there.” Tad was calling, “Arturo, come here!” “When this pressure comes on, Jeff, hold firm. Just sit tight.” Arturo left me. Into the abyss. Strange, fearsome descent! A confusion of impressions. We had left the island. How far we went I could not say. An hour perhaps. The globe turned slowly; the illumined circles of windows with the green water outside them, rotated slowly around me. And then the descent began. The globe had been throbbing, not only with vibration; with sound. The sound intensified. The globe gradually began whirling faster. I heard Tad say: “We’re located right, aren’t we, Entt? By the little auk at the pole, I don’t want to go down at the wrong place!” “There’s the marker we flung out,” said Arturo, and Entt nodded. “See it--off there?”