The greatest of these is a high white rock carved all over into steps and seats and altars and basins, which are said to have been made to catch the blood of the living sacrifices that were offered up here by a race of men whose name has been forgotten. It is called in our language the Sayacusca, or Tired Stone, for an old tradition says that ages ago it was brought from the mountains by the toil of ten thousand men, and when it reached its present place it rolled over and killed three hundred of them, and could never be moved again upon its journey. On the south side of this there is a great cleft from the top to the bottom, and up the sides of this cleft are the two halves of a stairway, which was carved there before some earthquake rent the stone in twain, and under this is a deep dark pool of water. At the entrance to the cleft I stopped and beckoned to the others to come round me. Then I told them that they were about to see that which no man then alive on earth had ever seen, and made all swear by the Glory of the Sun that each and every one of them would slay without pity him who revealed anything seen or heard that night, even though he were his own brother, or his own father, or his own son. As for Djama, they held him there bound and blindfolded amongst them, and when he tried to speak they stopped his mouth at my bidding, for I had told them that I would be answerable for him, since I had brought him here for my own purposes. Then I made two of the men stretch a cord tightly across the mouth of the cleft close down to the ground, and to the middle of this I tied another cord, and stretched it out straight twelve foot-lengths from the centre, and here I bade them clear away the bushes, and dig. Then axe and hoe and spade went to work. In that clear air, and under that cloudless sky, the stars gave light enough to work by, and soon a space had been cleared, and a round hole about three feet across was being dug down through the loose, rocky soil. When it was about half the depth of a man the spades struck on the solid rock below, and could go no farther. When Tupac told me of this, I, who had been standing by the cleft, looking--full of strange thoughts--down into the dark pool of water, called the man who had been digging out of the hole, and, taking an iron bar from Tupac, I dropped into it.