For nearly forty hours the gale continued, and then there succeeded a perfect calm. I knew this to be the case, because I no longer heard the seething sound which usually betokens that the ship is moving through the water. But notwithstanding that the wind had ceased to blow, the vessel kept tumbling about; and her timbers creaked, and boxes and barrels rolled and knocked each other, as badly as ever. This was occasioned by the "swell" which always succeeds a heavy gale, and which is sometimes as dangerous to vessels as the stormy weather itself. In a very heavy swell the masts are sometimes broken, and the ship thrown upon her beam-ends--a catastrophe ever dreaded by sailors. The swell gradually subsided, until, in about twenty-four hours after, it had ceased altogether, and the vessel appeared to glide along more smoothly than ever. The nauseating sickness took its departure about the same time, and I felt the reaction of health, which produced a little cheerfulness within me. As my fears had kept me awake during the whole time the storm was raging, and as I had continued ill so long as the violent rocking prevailed, I was quite worn out; so that the moment things were smooth again, I fell off into a profound slumber. I had dreams that were nearly as terrible as the realities through which I had been passing. In fact, I dreamt what but the hours before I had been dreading. I dreamt that I was being drowned, and just under the circumstances in which I was--shut up in the hold without the chance of swimming a stroke for my life. Nay more, I dreamt that I actually _was_ drowned, and lying at the bottom of the sea--that I was dead, but not unconscious. On the contrary, I could see well around me, and perceived, among other things, horrible green monsters--crabs or lobsters--crawling towards me, as if with the design of tearing me with their hideous claws, and feasting on my flesh! One, in particular, drew my attention, larger and more spiteful-looking than the rest, and closer to me than any. Each instant, too, he was drawing nearer and nearer. I thought he had reached my hand, and I could feel him crawling upon it. I could feel the cold harsh touch as he dragged his unwieldy shape over my fingers, but I could not move either hand or finger to cast him off. On he came over my wrist and straight up my arm, which was lying outstretched from my body. He appeared as if determined to attack me in the face or the throat. I read his intention to do so from the eagerness with which he advanced, but despite the horror I felt, I could do nothing to repel him. I could not move hand or arm--nor a muscle of my body. How could I, since I was drowned and dead? "Ha! he is on my breast--at my very throat--he will soon clutch me--ha!"