"What?" cried Durkin. "Turn back now? The hell you say! That damn peon got into a fight with somebody and maybe got bit by a snake later. We'll go on and get that treasure."

"But—but what made those fish come up that way?" said Maget, his brows creased in perplexity.

Durkin shrugged. "What's the difference? We're O. K., ain't we?"

In spite of the stout man's bravado, it was evident that he, too, was disturbed at the strange happenings. He kept voicing aloud the question in his mind; what was in the queer tube?

But he forced Maget to go on. Without Juan, the peon, to leave them caches of food on the trail, they would have a difficult time getting provender, but both were trained jungle travelers and could find fruit and shoot enough game to keep them going.

Day after day they marched on, not far from the rear of the party before them. They took care to keep off Gurlone's heels, for they did not wish their presence to be discovered.

When they had been on the journey, which led them east, for four days, the two rascals came to a waterless plateau, which stretched before them in dry perspective. Before they came to the end of this, they knew what real thirst was, and their tongues were black in their mouths before they caught the curling smoke of fires in the valley where they knew the mine must be.

"That's the mine," gasped Durkin, pointing to the smoke.