Seemingly the attack was one of mad, senseless ferocity unguided by either reason or skill. Nothing, however, could have been farther from the truth than such an assumption since every muscle in the ape-man's giant frame obeyed the dictates of the cunning mind that long experience had trained to meet every exigency of such an encounter. The long, powerful legs, though seemingly inextricably entangled with the hind feet of the clawing cat, ever as by a miracle, escaped the raking talons and yet at just the proper instant in the midst of all the rolling and tossing they were where they should be to carry out the ape-man's plan of offense. So that on the instant that the cat believed it had won the mastery of its antagonist it was jerked suddenly upward as the ape-man rose to his feet, holding the striped back close against his body as he rose and forcing it backward until it could but claw the air helplessly. Instantly the shaggy black rushed in with drawn knife which it buried in the beast's heart. For a few moments Tarzan retained his hold but when the body had relaxed in final dissolution he pushed it from him and the two who had formerly been locked in mortal combat stood facing each other across the body of the common foe. Tarzan waited, ready either for peace or war. Presently two shaggy black hands were raised; the left was laid upon its own heart and the right extended until the palm touched Tarzan's breast. It was the same form of friendly salutation with which the pithecanthropus had sealed his alliance with the ape-man and Tarzan, glad of every ally he could win in this strange and savage world, quickly accepted the proffered friendship. At the conclusion of the brief ceremony Tarzan, glancing in the direction of the hairless pithecanthropus, discovered that the latter had recovered consciousness and was sitting erect watching them intently. He now rose slowly and at the same time the shaggy black turned in his direction and addressed him in what evidently was their common language. The hairless one replied and the two approached each other slowly. Tarzan watched interestedly the outcome of their meeting. They halted a few paces apart, first one and then the other speaking rapidly but without apparent excitement, each occasionally glancing or nodding toward Tarzan, indicating that he was to some extent the subject of their conversation. Presently they advanced again until they met, whereupon was repeated the brief ceremony of alliance which had previously marked the cessation of hostilities between Tarzan and the black. They then advanced toward the ape-man addressing him earnestly as though endeavoring to convey to him some important information. Presently, however, they gave it up as an unprofitable job and, resorting to sign language, conveyed to Tarzan that they were proceeding upon their way together and were urging him to accompany them.