ADVENTURES OF CAPTAIN HORN
the cave well lighted, and with a most eager interest the captain examined the slimy and curious object on which his feet had rested when it was submerged, and from which he had fallen. It was not the horizontal trunk of a tree with a branch projecting from it at right angles. It was nothing that was natural or had grown. It was plainly the work of man. It was a machine.
At first the captain thought it was made of wood, but afterwards he believed it to be of metal of some sort. The horizontal portion of it was a great cylinder, so near the bottom of the lake that he could almost touch it with his hands, and it was supported by a massive framework. From this projected a long limb or bar, which was now almost horizontal, but which the captain believed to be the thick rod which had stood upright when he clutched it, and which had yielded to his weight and had gone down with him. He knew now what it was: it was a handle that had turned.
He hurried to the other end of the huge machine, where it rested against the rocky wall of the cavern. There he saw in the shadow, but plain enough now that he was near it, a circular aperture, a yard or more in diameter. Inside of this was something which looked like a solid wheel, very thick, and standing upright in the opening. It was a valve. The captain stepped back and gazed for some minutes at this great machine which the disappearance of the water had revealed. It was easy for him to comprehend it now.
"When I slipped and sank," he said to himself, "I pulled down that lever, and I opened the water-gate and let out the lake."
77
