You may think it strange, but I felt a great reluctance to paddle into that gloomy place; my imagination, more active than Billy's, saw it peopled by sea-urchins and hobgoblins, and I could fancy I already heard strange noises, the fruit, I suppose, of my reading that wonderful play of Shakespeare, _The Tempest_. However, I could not show the white feather before Billy, so we paddled into the entrance, finding a considerable depth of water there, and so for twenty or thirty yards, there being more light in the cave than we had thought when outside, because it was lofty, and the water threw up reflections. But when we had come some twenty yards into it, it made a sudden bend to the right, and at the same place became very much darker, so that though we peered in we could see but a few yards in front of us. We stayed for a little, looking about us, and seeing nothing but what appeared to be considerable patches of seaweed floating on the water; nor did we hear any noises, but all was as still as death, so that even Billy was oppressed by the silence, and even more by the hollow echo when he spoke. "I don't much like the look of this place, master," he said. I did not tell him that my feeling was the same, but affected to laugh at him, though at the same time I dipped my paddle to bring the vessel round with her head pointing to the opening. As I did so, I observed a sort of heaving and undulating movement in one of the patches of seaweed, and marvelled at it, for there was no current on the surface, and the vessel was perfectly steady. But supposing there must be an under-current of some kind, I paid no more heed to it, but continued to paddle, and we soon brought the vessel out of the cave and among a little labyrinth of rocks, partly above the surface and partly submerged. We had but just got there, however, when we found our vessel begin to lose way and our paddles to stick in the seaweed, as we supposed, which was now very thick on the surface, and which was the greater impediment to us because of the outrigger. We strove as hard as we could to force the vessel through, but it was like tugging at a rebellious slip-knot; the harder you tug the more you tie yourself up. We were thinking of backing the vessel, so as to go round about the obstacle, when all of a sudden, as I took notice of how the tendrils of the seaweed were clinging about the outrigger and curling up towards the side of the canoe, I was seized with the horrid suspicion that we had not to deal with seaweed at all, but with a monster, or maybe several, like to that terrible creature which had almost dragged me down when we were searching for eggs, as I have related. This thought made me shudder with a sickening apprehension, especially when the notion struck me, as it did at that moment, that this cavern could not be very far from the steep and rugged cliff by which we had descended. Even before I could whisper my dread thought to Billy, some of the