Hazily I could see scores of the bristly, manlike fish when I opened my eyes and glanced through the walls. It was not one monster then, but many that had brought us to their lair. Abruptly, as though a signal had been given, they all streamed back toward the mouth of the cavern.... My eyesight dimmed.... The hammers pulsed louder.... A veil descended over my senses and I knew no more.... * * * * * A soft, sustained roar came to my ears. Through my closed eyelids I could sense light. A dank, fishy smell came to my nostrils. I groaned and moved feebly, finding that I was resting on something soft and pleasant. Dazedly I opened my eyes and sat up. An exclamation burst from me as I suddenly remembered what had gone before, and realized that somehow, incredibly, I was still living. Feeling like a man who has waked from a nightmarish sleep to find himself in his tomb, I gazed about. I was in a long, lofty rock chamber, the uneven floor of which was covered with shallow pools of water. The further end was of smooth-grained stone that resembled cement. The near end was rough like the walls; but in it there was a small, symmetrical arch, the mouth of a passage leading away to some other point in the bowels of the earth. The place was flooded with clear light that had a rosy tinge. From my position on the floor I could not see what made the light. It streamed from a crevice that extended clear around the cave parallel with the floor and about twelve feet above it. From this groove, along with the light, came the soft roaring hiss. Beside me was the glass ball, the cover off and lying a few feet away from the opening in the top. There was no trace of Stanley or the Professor. I rose from my couch, a thick, mattresslike affair of soft, pliant hide, and walked feebly toward the small arch in the near end of the cave. Even as I approached it I heard footsteps, and voices resounded in some slurring, musical language. Half a dozen figures suddenly came into view. They were men, as human as myself! Indeed, as I gazed at them, I felt inclined to think they were even more human! * * * * * They were magnificent specimens. The smallest could not have been less than six feet three, and all of them were muscular and finely proportioned. Their faces were arresting in their expression of calm strength and kindliness. They looked like gods, arrayed in soft, thick, beautifully tanned hides in this rosy tinted hole a mile below the ocean's top. They stared at me for an instant, then advanced toward me. My face must have reflected alarm, for the tallest of them held up his hand, palm outward, in a peaceful gesture. The leader spoke to me. Of course the slurred, melodious syllable meant nothing to me. He smiled and indicated that I was to follow him. I did so, hardly aware of what I was doing, my brain reeling in an attempt to grasp the situation.