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 had no sooner entered the tunnel than he backed immediately out again and, pivoting like a flash, was off across the gulch in full charge after the flying ape-man; but Tarzan's lead was too great if he could find finger or foothold upon the sheer wall he would be safe; but should he slip from the wet rocks his doom was already sealed as he would fall directly into Numa's clutches where even the great Tarmangani would be helpless.

With the agility of a cat Tarzan ran up the cliff for thirty feet before he paused, and there finding a secure foothold, he stopped and looked down upon Numa who was leaping upward in a wild and futile attempt to scale the rocky wall to his prey. Fifteen or twenty feet from the ground the lion would scramble only to fall backward again defeated. Tarzan eyed him for a moment and then commenced a slow and cautious ascent toward the summit. Several times he had difficulty in finding holds but at last he drew himself over the edge, rose, picked up a bit of loose rock, hurled it at Numa and strode away.

Finding an easy descent to the gorge he was about to pursue his journey in the direction of the still-booming guns when a sudden thought caused him to halt and a half-smile to play about his lips. Turning he trotted quickly back to the outer opening of Numa's tunnel. Close beside it he listened for a moment and then rapidly began to gather large rocks and pile them within the entrance. He had almost closed the aperture when the lion appeared