Tom’s hearty laugh was the last thing I heard. The bull’s-eye shut, and I found myself breathing fast. To my surprise the air supply was ample, no trace of taint,--good, wholesome air. “Come,” I said to myself. “This is not half bad.” Aided by the boy, I clambered clumsily over the bow and went down the little ladder. As I entered the water, the weight of my suit went from me, I was borne up as if I were in swimming, but, as I sank slowly, I began to feel a strange earache, increasing in intensity till I thought I should cry out with the agony. My forehead above my eyes seemed clamped in a circlet of red hot iron, and the bells of a thousand church spires seemed ringing and reverberating through my head. I could see dimly the black water about me, and I gripped the metal case of the electric lamp that I held in my hand, till I feared it would crush into fragments. All of a sudden I touched bottom, and the pain ceased. The relief was so great that for a moment or two I stood motionless, luxuriating in the respite and, as I started to go on, I realized that a slight depression was the only unusual bodily feeling left. I turned the switch of my lamp and looked about me. Nothing but clean, white sand, nothing to show which way I should turn. “Straight ahead is the best course,” I decided, and I started forward, my boots and dress, heavy and dragging on the surface as they were, of but the slightest inconvenience here. Fortunately for me, the tide was no serious hindrance, and I was to windward of the boat. Before moving I turned my lantern in every direction. One thing was sure. There was no huge hulking shadow, such as a warship lying on the bottom would make. My lamp but dimly outlined the lane of light on the sand along which I started forward. Now that I was about my work, and had safely reached the bottom, the strangeness of the situation began to wear off. I went ahead twenty measured steps, casting my light in every direction. No result. I paced back the same number to keep my position even. Turned to the right, and repeated the maneuver. Turned to the left, and did the same. No sign. Apparently the depths had remained untouched since the Royal George had been cleared from the harbor, back about 1840. Returned from my last trip, I turned off my lantern, to save its current, and stood in the darkness pondering. I did not want to go backward from the place where I was. Such a step would put me to leeward of the boat, and the lad had warned me against such a move, saying that it might be hard for me to make progress against the tide. There was nothing to be done save to try a further cast of fortune, so I pushed on twenty paces forward and started to count twenty more. Just as I was reaching the limit, the lantern gleam showed a shadow ahead of me. I hurried on till the object came into the full light. There, peacefully as if sleeping in his quiet bed at home, lay a midshipman in his blue uniform. He could not have been fifteen years of age.