But when at length there, I found it impossible to sleep. The excitement attendant on the beginning of the trip seemed to have returned on me with a double force. I listened for some sound to relieve the awful stillness which, like the wing of Death, seemed to have settled over the "Flying Cloud"; but there was no soughing of the wind, as at sea, and no noise to be heard, save the monotonous movement of the engine and the paddle-wheels; and this, so evenly did they play, was rather a motion than a sound. This period of restlessness was succeeded by one of strange bewilderment, which might have been sleep, or might not Rapidly changing scenes and fantastic figures, some of them beautiful and some horrible, flitted before me like a dissolving panorama. A band, as though of steel wire, seemed to encircle my brain, and to compress it closer and closer; and the spine, for its whole length, felt as though subjected to a like crushing pressure. How long this state of hallucination continued I have no means of knowing. From it, by a great effort, I suddenly aroused myself, and returned to my proper senses. Where I was, and all the extraordinary events of the last few days, were clear in my recollection. But I was weighed down with weakness, and found, on attempting to speak, that I had no voice. Suspecting that I had been stricken by some terrible disease, I attempted to rise; and, loath to disturb any of my fellow-travellers, undertook to crawl out upon the upper deck. This, after a good deal of effort, I accomplished. Lying, therefore,--I could not stand,--I prayed for a breath of air to relieve my hot and oppressed brow; but in vain. The atmosphere seemed gone. Chill and dark, the heavens spread out above me without a twinkle or a smile. The full-moon was there, and there was no cloud or haze to obscure her light; but she did not shine. Her white, rayless face was a mockery to the night. The same was true of the stars. The dazzling canopy was faded out, and Cygnus and the Great Bear were subdued to pallid points, like patches of white-gray paper stuck upon a wall. Floating by the side of the "Flying Cloud," and nearly of her size, I discovered a dark, irregular object, and dragged myself to the edge of the deck to investigate it more closely. The two came together, but without damage or friction. They touched and parted, like substances nearly at rest in still water. I put out my hand on the strange visitor, and received a pretty severe shock, as though I had been subjected to the action of an electric battery. At the same time, a light, bluish flame ran over its surface, showing me more accurately its form and dimensions. To the touch, it was solid and cold, like iron or granite. I pressed upon it, and it yielded like a floating dish. I tried to break off a fragment, but was unable to separate so much as a scale.