It took us some time to make a rope ladder, but when it was done, and fastened to the doorposts, I descended and hacked away with my spade at the sides of the hole below me until I had made it big enough for my body to go through. Then I got Billy to hand down to me a lighted torch, and bending as low as I could, I clung to the ladder with one hand, and with the other held the torch in the space below, being nearly suffocated by its stinking fumes. However, by moving the torch backwards and forwards I made out that the space was a small chamber, oblong in shape, but not regular, and with a floor, but, so far as I could see, no outlet, though I knew there must be one, because of the current of air. Feeling by no means sure of the depth of the floor below me, I clambered up again and pulled the ladder after me, and we lengthened it by some three feet before I descended again. By the light of my torch I then saw that I could drop to the floor without any danger, and I let go the ladder, and fell upon my feet on hard rock. "What cheer, master?" calls out Billy, with his face close to the top of the shaft above. I told him that I was safe and what manner of place I was in, and said I would explore further, and when I did so I found that we had no need to trouble ourselves about the safety of our hut, because the walls of this underground chamber were of hard rock, like the rocks on the sides of the mountain, and the roof the same, except at the place where we had dug our shaft. How this came to be I did not trouble to think,[1] nor did it concern us, the great matter for us being that our hut had a solid foundation, which was a great comfort. When I told this to Billy, by shouting up through the shaft, the sound of my voice echoing very strangely, he cried back that he was glad to hear it and that he was coming down to see. "No, no," I cried at this; "you keep guard above while I seek further; and besides, the ladder does not reach the ground, and perhaps you couldn't get up again." "Then how will you get up, master?" says Billy. "Why, you can draw the ladder up while I go exploring, and by the time I come back you can lengthen it," was my answer. This he agreed to do, only he begged me not to be long. [Sidenote: A Tunnel]