Beyond the last line of sentinels Tarzan moved quickly in the direction of Numa, the lion. The beast was lying down as Tarzan approached, but he rose as the ape-man reached his side. A low whine escaped his muzzled lips. Tarzan smiled for he recognized in the new note almost a supplication -- it was more like the whine of a hungry dog begging for food than the voice of the proud king of beasts.
"Soon you will kill -- and feed," he murmured in the ver-nacular of the great apes.
He unfastened the rope from about the tree and, with Numa close at his side, slunk into No Man's Land. There was little rifle fire and only an occasional shell vouched for the presence of artillery behind the opposing lines. As the shells from both sides were falling well back of the trenches, they consti-tuted no menace to Tarzan; but the noise of them and that of the rifle fire had a marked effect upon Numa who crouched, trembling, close to the Tarmangani as though seeking protec-tion.
Cautiously the two beasts moved forward toward the listen-ing post of the Germans. In one hand Tarzan carried the bomb the English had given him, in the other was the coiled rope attached to the lion. At last Tarzan could see the posi-tion a few yards ahead. His keen eyes picked out the head and shoulders of the sentinel on watch. The ape-man grasped the bomb firmly in his right hand. He measured the distance with his eye and gathered his feet beneath him, then in a single motion he rose and threw the missile, immediately flattening himself prone upon the ground.
Five seconds later there was a terrific explosion in the center of the listening post. Numa gave a nervous start and at-tempted to break away; but Tarzan held him and, leaping to his feet, ran forward, dragging Numa after him. At the edge of the post he saw below him but slight evidence that the position had been occupied at all, for only a few shreds of torn flesh remained. About the only thing that had not been demolished was a machine gun which had been protected by sand bags.
There was not an instant to lose. Already a relief might be crawling through the communication tunnel, for it must have been evident to the sentinels in the Hun trenches that the listening post had been demolished. Numa hesitated to fol-low Tarzan into the excavation; but the ape-man, who was in no mood to temporize, jerked him roughly to the bottom.
Before them lay the mouth of the tunnel that led back from No Man's Land to the German trenches. Tarzan pushed Numa forward until his head was almost in the aperture, then as though it were an afterthought, he turned quickly and, taking the machine gun from the parapet, placed it in the bottom of the hole close at hand, after which he turned again to Numa, and with his knife quickly cut the garters that held the bags upon his front paws. Before the lion could know that a part of his formidable armament was again released for action, Tarzan had cut the rope from his neck and the head bag from his face, and grabbing the lion from the rear had thrust him partially into the mouth of the tunnel.
Then Numa balked, only to feel the sharp prick of Tarzan's knife point in his hind quarters. Goading 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.
