Merrick went first over the ladder at the side, and Hewitt with much difficulty followed. As the water closed over his head, his sensations altered considerably. There was less weight to carry; his arms in particular felt light, though slow in motion. Down, down they went slowly, and all round about it was fairly light, but once on the sunken vessel and among the lower decks, the electric lamps were necessary enough. Once or twice Merrick spoke, laying his helmet against Hewitt's for the purpose, and instructing him to keep his air-pipe, life-line, and lamp connection from fouling something at every step. Here and there shadowy swimming shapes came out of the gloom, attracted by their lamps, to dart into obscurity again with a twist of the tail. The fishes were exploring the _Nicobar_. The hatchway of the lower deck was open, and down this they passed to the orlop deck. A little way along this they came to a door standing open, with a broken lock hanging to it. It was the door of the bullion-room, which had been forced by the divers in the morning. Merrick indicated by signs how the cases had been found piled on the floor. One of the sides of the room of thin steel was torn and thrust in the length of its whole upper half, and when they backed out of the room and passed the open door they stood in the great breach made by the bow of the strange coasting vessel. Steel, iron, wood, and everything stood in rents and splinters, and through the great gap they looked out into the immeasurable ocean. Hewitt put up his hand and felt the edge of the bullion-room partition where it had been torn. It was just such a tear as might have been made in cardboard. They regained the upper deck, and Hewitt, placing his helmet against his companion's, told him that he meant to have a short walk on the ocean bed. He took to the ladder again, where it lay over the side, and Merrick followed him. The bottom was of that tough, slimy sort of clay-rock that is found in many places about our coasts, and was dotted here and there with lumps of harder rock and clumps of curious weed. The two divers turned at the bottom of the ladder, walked a few steps, and looked up at the great hole in the _Nicobar's_ side. Seen from here it was a fearful chasm, laying open hold, orlop, and lower deck. Hewitt turned away, and began walking about. Once or twice he stood and looked thoughtfully at the ground he stood on, which was fairly flat. He turned over with his foot a whitish, clean-looking stone about as large as a loaf. Then he wandered on slowly, once or twice stopping to examine the rock beneath him, and presently stooped to look at another stone nearly as large as the other, weedy on one side only, standing on the edge of a cavity in the claystone. He pushed the stone into the hole, which it filled, and then he stood up. Merrick put his helmet against Hewitt's, and shouted-- "Satisfied now? Seen enough of the bottom?"