Its whole length was launched into the air as it sprang, and for a flash its wide-opened jaws with their hideous rows of triangular teeth, appeared to engulf the red ape. But while the boys were still held spell-bound by this spectacle, such a one as perhaps no human being but a lone native hunter had ever beheld before, the red gorilla gave a mighty leap. It was partly straight up and partly to one side. As the great jaws of the saurian came together with a snap like that of a titanic steel trap, the red ape landed fair and square on the scaled monster’s back.

Straddling the plated hide, the great hairy legs gripped the crocodile’s sides as a bronco buster grips his fractious mount. And now commenced a struggle between these two denizens of the deepest New Guinea forests such as the two young spectators remembered with photographic vividness to the end of their lives.

On the part of the crocodile the battle was simply a series of leaps and wild tail threshings in an effort to dislodge his nimble foe. The grass and weeds were mown down as if by a scythe by the sweeps of the great tail, but the ape held firm, his little eyes twinkling wickedly. With one arm it clutched the rough hide firmly, but the other was waving about like a tentacle seeking something to grasp.

During the struggle the jaws of the crocodile had been frequently snapped, but they only closed on empty air. As in all the saurian tribe, during this process the upper jaw had pointed nearly vertically upward, making an opening big enough to swallow a canoe. Suddenly the watchers saw the orang’s purpose. All at once the disengaged arm made a swift sweep forward and grasped the extended upper jaw.

“Great Scott! he’s done for now,” cried Billy. “That jaw will close and cut his fingers off.”

“Hold on,” warned Jack. “Watch. I’ve heard these creatures can bend rifle barrels as if they were made of lead. Perhaps—look!”

The orang suddenly shifted his position. He was now kneeling on the crocodile’s back, his knees braced firmly on its armor-plated neck and his second arm aiding the first in the task of keeping those jaws, once apart, from ever coming together again. Then summoning every ounce of that strength that has made the orang the most dreaded of all the forest animals in that part of the world, even the Bornean tiger owning his supremacy, the red gorilla gave one grand wrench.

There was a tearing sound as of a tree being torn from its roots, and the alligator’s body writhed and threshed about convulsively. The great ape sprang free from the scaly monster and with hoarse laughter that sounded like the merriment of a maniac, it gazed on the saurian’s struggles. But it was not destined to see the end of them. In its agony the great crocodile instinctively made for the water and was soon out of sight, threshing and writhing until a clump of water-cane hid it from sight.

Then, and not till then, did the orang take its eyes from its conquered enemy. But when it had seen the last of it, the hairy creature turned and appeared to be contemplating fresh victory. The lust of battle was in its wicked little eyes.

“Down, Billy, down with you quick,” warned Jack, pulling his chum aside in the thicket. “If it comes this way, shoot at once. I wouldn’t want to come to close quarters with a creature like that. I thought Salloo was drawing the long bow when he told me about the mias, as he called it, but he didn’t put it on thick enough.”