Presently, we came to that portion of the hill which overhung the valley, and I went to the edge of the cliff, intending to peer over; for the valley had a very unholy fascination for me. Yet, no sooner had I glanced down than I started, and ran back to the bo'sun and plucked him by the sleeve, and at that, perceiving my agitation, he came with me in silence to see what matter had caused me so much quiet excitement. Now, when he looked over, he also was astounded, and drew back instantly; then, using great caution, he bent forward once more, and stared down, and, at that, the big seaman came up behind, walking upon his toes, and stooped to see what manner of thing we had discovered. Thus we each of us stared down upon a most unearthly sight; for the valley all beneath us was a-swarm with moving creatures, white and unwholesome in the moonlight, and their movements were somewhat like the movements of monstrous slugs, though the things themselves had no resemblance to such in their contours; but minded me of naked humans, very fleshy and crawling upon their stomachs; yet their movements lacked not a surprising rapidity. And now, looking a little over the bo'sun's shoulder, I discovered that these hideous things were coming up out from the pit-like pool in the bottom of the valley, and, suddenly, I was minded of the multitudes of strange fish which we had seen swimming towards the island; but which had all disappeared before reaching the shore, and I had no doubt but that they entered the pit through some natural passage known to them beneath the water. And now I was made to understand my thought of the previous night, that I had seen the flicker of tentacles; for these things below us had each two short and stumpy arms; but the ends appeared divided into hateful and wriggling masses of small tentacles, which slid hither and thither as the creatures moved about the bottom of the valley, and at their hinder ends, where they should have grown feet, there seemed other flickering bunches; but it must not be supposed that we saw these things clearly.