"Then—then you think—you believe——"

"That he has been dashed to his death on the rocks a hundred feet below," added Lige solemnly. "Nothing short of a miracle could have saved him, and miracles ain't common in the Rockies."

The boys gazed into each other's eyes, then turned away. None dared trust his voice to speak. It was some moments before the Professor had succeeded in exercising enough self-control to use his own.

"Wh—what can we do?" he asked hoarsely.

"Nothing, except go down and pick him up——"

"But how?"

"By going back a mile we shall hit a trail that will lead us down into the gulch. But we'll have to leave the ponies and go down on foot. Not being experienced, I'm afraid to trust them. Only the most sure-footed ponies could pick their way where one misstep would send them to the bottom."

Returning to camp, and piling the fire high with fresh wood, the boys secured the ponies, and, led by Lige, struck off over the hack trail. It was a silent group of sad-faced boys that followed the mountain guide, and not a syllable was spoken, save now and then a word of direction from Lige, uttered in a low voice.

After somewhat more than half an hour's rough groping over rocks, through tangled underbrush and miniature gorges, Lige called a halt while he took careful account of their surroundings. His eye for a trail was unerring, and he was able to read at a glance the lesson it taught.

"Here is where we turn off," he announced. "Follow me in single file. But everybody keep close to the rocks at your right hand, and don't try to look down. I'm going to light a torch now."