He rose to his feet, and his legs seemed weak.

He waited--one minute, two, three; and then he stole cautiously to the twist in the ledge around which Thor had gone.
The rocks were clear, and he began to retrace his own steps toward the meadowy break, watching and listening, and still clutching the broken parts of his rifle.

When he came to the edge of the plain he dropped down behind a huge boulder.
Three hundred yards away Thor was ambling slowly over the crest of the dip toward the eastward valley.

Not until the bear reappeared on the farther ridge of the hollow, and then vanished again, did Langdon follow.
When he reached the slope on which he had hobbled his horse Thor was no longer in sight.

The horse was where he had left it.