"Wait," cried Lu-don. "If I do not produce him before the sun has moved his own width, the gates of the palace shall be opened to you and my warriors will lay down their arms." He turned to one of his priests and issued brief instructions. The ape-man paced the confines of his narrow cell. Bitterly he reproached himself for the stupidity which had led him into this trap, and yet was it stupidity? What else might he have done other than rush to the succor of his mate? He wondered how they had stolen her from Ja-lur, and then suddenly there flashed to his mind the features of the warrior whom he had just seen with her. They were strangely familiar. He racked his brain to recall where he had seen the man before and then it came to him. He was the strange warrior who had joined Ja-don's forces outside of Ja-lur the day that Tarzan had ridden upon the great GRYF from the uninhabited gorge next to the Kor-ul-JA down to the capital city of the chieftain of the north. But who could the man be? Tarzan knew that never before that other day had he seen him. Presently he heard the clanging of a gong from the corridor without and very faintly the rush of feet, and shouts. He guessed that his warriors had been discovered and a fight was in progress. He fretted and chafed at the chance that had denied him participation in it. Again and again he tried the doors of his prison and the trap in the center of the floor, but none would give to his utmost endeavors. He strained his eyes toward the aperture above but he could see nothing, and then he continued his futile pacing to and fro like a caged lion behind its bars. The minutes dragged slowly into hours. Faintly sounds came to him as of shouting men at a great distance. The battle was in progress. He wondered if Ja-don would be victorious and should he be, would his friends ever discover him in this hidden chamber in the bowels of the hill? He doubted it. And now as he looked again toward the aperture in the roof there appeared to be something depending through its center. He came closer and strained his eyes to see. Yes, there was something there. It appeared to be a rope. Tarzan wondered if it had been there all the time. It must have, he reasoned, since he had heard no sound from above and it was so dark within the chamber that he might easily have overlooked it. He raised his hand toward it. The end of it was just within his reach. He bore his weight upon it to see if it would hold him. Then he released it and backed away, still watching it, as you have seen an animal do after investigating some unfamiliar object, one of the little traits that differentiated Tarzan from other men, accentuating his similarity to the savage beasts of his native jungle. Again and again he touched and tested the braided leather rope, and always he listened for any warning sound from above.