The intruder had not taken more than a few paces when he stumbled against a body lying in the shadow. The man arose and bent forward into the moonlight, uttering a low cry of surprise. Buffalo Bill raised the tomahawk, but before he could use it he saw that the man was none other than his blood brother, Red Cloud, the Navaho chieftain. Without a word Red Cloud extended his hands, and Buffalo Bill saw that they were bound together by a rawhide rope. He drew his bowie knife and cut the bonds, and then handed the Indian the tomahawk which he had taken from the sentry at the mouth of the cave. Red Cloud rose to his feet and eagerly gripped the weapon. “I expected you, my brother,” he said simply. The cry which the Indian had given when Buffalo Bill stumbled against him had aroused one of the Cave Dwellers sleeping near by. He was, as it appeared afterward, the chief of the tribe, and he raised his body on his elbow and glanced around suspiciously. His eyes fell upon Buffalo Bill and Red Cloud, and he instantly leaped to his feet, with a frightful yell of rage and warning. In a moment the cavern was alive with the forms of the Cave Dwellers, wakened from their sleep, while those who had been talking at the back also ran forward. All this had happened in a much shorter space of time than the telling takes. The rest of the attacking party had not yet come up, and the blood brothers were in the most deadly peril. The chief of the Cave Dwellers rushed forward, and in a moment was locked in a death grapple with the border king on the ledge at the mouth of the cave. As the rest of the band came forward, Red Cloud advanced a pace or two to meet them. Buffalo Bill and the chief of the Cave Dwellers struggled on the edge of the precipice, locked in a deadly embrace; while the brave Navaho, tomahawk in hand, kept the other Indians at bay. Although he was a man of small stature, the savage chief possessed the strength and ferocity of a giant ape. He strove to throw Buffalo Bill over the cliff, and in his rage he cared not whether he went over with him. To and fro they swayed, and it seemed as if they must go down to death together, locked in one another’s arms. But with a mighty effort Buffalo Bill overpowered the savage, raised him from the ground, and flung him sheer over the cliff, making a quick turn on his heel as he did so, in order to avoid being carried over himself by the impetus of the falling body. He had got rid of his dangerous adversary none too soon, for the Cave Dwellers were attacking Red Cloud with great ferocity and would have overpowered him in another moment, although he was making fine play with his tomahawk and had stretched two of the savages dead at his feet.