For all that, Wilder continued to scan it, as if recalling some old recollection.
"This must be the place," he muttered.

"It is, by God!" he added more emphatically, at the same time wrenching his horse around, riding sharp off, and calling to his companion to follow him.
Hamersley obeyed, and rode after, without knowing what next.

But, in another instant, he divined the intent of this sudden change in the tactics of his fellow fugitive.

For before riding far his eyes fell upon a dark list, which indicated an opening in the escarpment.
It was a mere crack, or chine, scarce so wide as a doorway, and barely large enough to admit a man on horseback; though vertically it traversed the cliff to its top, splitting it from base to summit.
"Off o' yur hoss!" cried Wilder, as he pulled up in front of it, at the same time flinging himself from his own.

"Drop the bridle, and leave him behint.