The hand of Bomba clutched convulsively at the handle of his knife. He vowed to the gods of the thunder and the rain that he would protect his friend to the last gasp; that if Casson were to die, he, Bomba, would die with him, stretched across his body.

But it was too early yet to think of death. Too long had Bomba braved the perils of the jungle not to know the fleetness of his foot, the sureness of his eye, the strength of his muscles. Bomba had fought the braves of Nascanora’s tribe before; had beaten and outwitted them. He would fight them again, matching his strength against their strength, his brain against their brain. And he told himself that Bomba would win.

Stealthily as a shadow, still crouching low behind the bushes, Bomba crept along the gully, his ears strained for any sound that might indicate pursuit.

Had they seen him? Had his form beneath the shadow of the rock been as plain to them as theirs to him?

Bomba doubted this, for the rock was sheltered by the overhanging limbs of trees, while the Indians had stood up straight, clearly outlined against the tangled undergrowth of the jungle.

The advantage so far was Bomba’s. But how long could he hope to retain it?

Bomba pushed against the wind almost as against a solid obstacle. It required all his strength to keep his feet. The lightning, that was now almost incessant, filled the forest with weird light, illuminating the tree branches and swaying vines in a fantastic tracery. Heavy ropes of creepers swung from the branches above the boy’s head and wrapped themselves about him, impeding his progress.

With teeth gritted, Bomba fought the fury of the storm. It was terrible, but not so ruthless and relentless as the enemy he was trying to leave behind.

An unusually vivid flash of lightning illumined a faint trail at Bomba’s right. He would leave the gully here and strike homeward toward the cabin of Pipina, where Casson lay, all unknowing of the danger that threatened him. He had been on his way there when the storm had risen and forced him to seek shelter beneath the lee of the rock.

A tree fell with the sound of rending branches directly in front of him. The outflung boughs caught him, swept him backward; castanha nuts pelted about him, now just grazing him and again leaving painful bruises on his body.