Finally the strain seemed to be off the rope, so that he could even pull it up a few inches as he chose. Either Donald had reached the shelf, and thus relieved the rope from his weight, or else—but Adrian would not allow himself to even consider the other possibility; and besides, they had heard no cry, no heavy thud. Ah! immediately he felt the rope twitch violently; yes, and a second time this came about. That must be meant as a signal by the one below; and he remembered how Donald had said he would give two distinct jerks after he had safely landed. “My turn now, Billie; look out for yourself; and when you find that one of us is coming up the rope, stand by to pull, if you get the word. It might be a bigger climb than we counted on, and some help needed before we could get to the top.” “Count on me, Adrian,” Billie said simply; and if his heart seemed in his throat as he shook his comrade’s hand lingeringly, no one knew it, because the night concealed all traces of his emotion. Adrian went down in just the same way the other had adopted, a little distance at a time, then a brief interval, after which he would again allow himself to slide some more. Presently, when he thought he might have come about far enough, something touched his foot that sent a thrill through his whole body, until he realized that it must be the hand of Donald, reaching up to reassure him. “All right, Ad; just one more drop, and you’re there,” came a low whisper; and he found himself guided into the haven, so that he could plant both feet on the solid rock. Leaving the rope to swing free, they began to look around them, in order to learn just how the old Witch Doctor came out upon that same shelf. In this they were greatly helped by the little electric hand torch which Donald had with him; and by means of which they quickly discovered a fissure in the face of the cliff, wide enough to allow the passage of a man. Leading the way, and using this useful means of illumination, Donald felt confident of being able to serve as a guide to the expedition. The path was very rough, so that at times they had to almost crawl; but then as they moved along it they could see from time to time that another had walked this way many times, undoubtedly the old medicine man of the Zunis, and those who had occupied his place years and years ago. “I wouldn’t be surprised,” remarked Adrian, in a low tone, as he caught hold of his companion’s arm, “if that dip yonder proves to be the passage which he uses whenever he enters below at the base of the cliff, and ascends, like he did that time we followed him here. The Zunis are that afraid they would run like wildfire if they thought they stood any chance to see him enter the mountain; so he must have fallen into a sort of a free-and-easy way. After seeing us around, he tightened up, and would only come here at night-time.” “H’st!”