The "branch," as Moore called it, was a strong stream that separated, as I knew, his lands from his brother's. We walked down slowly, and reached the broad boat which was dragged over by a chain when any one wanted to cross. At the "scow," as the ferry-boat was called, Peter joined us; he ferried us deftly over the deep and rapid water, and then led on, as rapidly as if it had been daylight, along a path through the pines. "How often I came here when I was a boy," said Moore; "but now I might lose myself in the wood, for this is my brother's land, and I have forgotten the way." As I knew that Mr. Bob Moore was confined to his room by an accident, through which an ounce of lead had been lodged in a portion of his frame, I had no fear of being arrested for trespass. Presently the negro stopped in front of a cliff. "Here is the 'Sachem's Cave,'" said Moore. "You'll help us to explore the cave, won't you?" I did not think the occasion an opportune one for exploring caves, but to have withdrawn would have demanded a "moral courage," as people commonly say when they mean cowardice, which I did not possess. We stepped within a narrow crevice of the great cliff. Moore lit a lantern and went in advance; the negro followed with a flaring torch. Suddenly an idea occurred to me, which I felt bound to communicate to Moore. "My dear fellow," I said in a whisper, "is this quite sportsmanlike? You know you are after some treasure, real or imaginary, and, I put it to you as a candid friend, is not this just a little bit like poaching? Your brother's land, you know." "What I am looking for is in my own land," said Moore. "The river is the march. Come on." We went on, now advancing among fairy halls, glistering with stalactites or paved with silver sand, and finally pushing our way through a concealed crevice down dank and narrow passages in the rock. The darkness increased; the pavement plashed beneath our feet, and the drip, drip of water was incessant. "We are under the river-bed," said Moore, "in a kind of natural Thames Tunnel." We made what speed we might through this combination of the Valley of the Shadow with the Slough of Despond, and soon were on firmer ground again beneath Moore's own territory. Probably no other white men had ever crawled through the hidden passage and gained the further penetralia of the cave, which now again began to narrow. Finally we reached four tall pillars, of about ten feet in height, closely surrounded by the walls of rock. As we approached these pillars, that were dimly discerned by the torchlight, our feet made a faint metallic jingling sound among heaps of ashes which strewed the floor. Moore and I went up to the pillars and tried them with our knives. They were of wood, all soaked and green with the eternal damp. "Peter," said Moore, "go in with the lantern and try if you can find anything there."