He needs only to guard a trail leading down from the sage-flat above.

Little danger of this outlet to the pass being discovered.

I stumbled on it by luck, after I had given up.

And now I know the truth of what puzzled me most--why that cattle trail was wet!" He wheeled and ran down the slope, and out to the level of the sage-brush.

Returning, he had no time to spare, only now and then, between dashes, a moment when he stopped to cast sharp eyes ahead.