him on the ape-man finally succeeded in getting the lion sufficiently far into the tunnel so that there was no chance of his escaping other than by going forward or deliberately backing into the sharp blade at his rear. Then Tarzan cut the bags from the great hind feet, placed his shoulder and his knife point against Numa's seat, dug his toes into the loose earth that had been broken up by the explosion of the bomb, and shoved.
Inch by inch at first Numa advanced. He was growling now and presently he commenced to roar. Suddenly he leaped forward and Tarzan knew that he had caught the scent of meat ahead. Dragging the machine gun beside him the ape-man followed quickly after the lion whose roars he could plainly hear ahead mingled with the unmistakable screams of frightened men. Once again a grim smile touched the lips of this man-beast.
"They murdered my Waziri," he muttered; "they crucified Wasimbu, son of Muviro."
When Tarzan reached the trench and emerged into it there was no one in sight in that particular bay, nor in the next, nor the next as he hurried forward in the direction of the German center; but in the fourth bay he saw a dozen men jammed in the angle of the traverse at the end while leaping upon them and rending with talons and fangs was Numa, a terrific incarnation of ferocity and ravenous hunger.
Whatever held the men at last gave way as they fought madly with one another in their efforts to
