Artena’s protracted absence boded ill for her safety, and the giant scout proceeded with caution.

“The devils have caught ’Reesa and killed the old woman!” he grated, through clenched teeth, as he crawled over the lava rocks. “I never thought they would strike so high as Lost River; but there’s no telling how far a Modoc will go for a scalp. I’d like to get ’Reesa from ’em to-night, but guess I can’t. So—hello! here’s a hole! Wonder where it leads to?”

The scout had paused at the mouth of a dark corridor which led, seemingly, far into the bowels of the earth.

“Now let me study a minute,” he murmured. “There’s a black hole hyarabouts that leads over the cave where I s’pect Jack is. I’ve crawled it afore, and I ought to tell now whether this is the one or not.”

Then, for several moments, he busied himself with examining the rocks at the mouth of the corridor, when, satisfied that he was on the right trail, he drew his hunting-knife and advanced.

He had gained the inner portal of the black passage, when he became aware that he was followed.

Instantly he paused and listened.

Sure enough, an Indian was creeping after him.

“Curse your red skin,” he hissed, hugging the black wall, as, knife in hand, he awaited the foe. “I’ll settle your hash. A little further, my boy; a little further, if you please.”

Nearer and nearer came the Indian, in the Cimmerian gloom, and all at once the scout’s left hand shot outward, and luckily griped a crimson throat.