Venters divined its significance. It had been meant for defense.

The cliff-dwellers, driven by dreaded enemies to this last stand, had cunningly cut the rock until it balanced perfectly, ready to be dislodged by strong hands. Just below it leaned a tottering crag that would have toppled, starting an avalanche on an acclivity where no sliding mass could stop. Crags and pinnacles, splintered cliffs, and leaning shafts and monuments, would have thundered down to block forever the outlet to Deception Pass.

"That was a narrow shave for me," said Venters, soberly. "A balancing rock! The cliff-dwellers never had to roll it. They died, vanished, and here the rock stands, probably little changed....But it might serve another lonely dweller of the cliffs. I'll hide up here somewhere, if I can only find water."

He descended the gorge on the other side. The slope was gradual, the space narrow, the course straight for many rods. A gloom hung between the up-sweeping walls. In a turn the passage narrowed to scarce a dozen feet, and here was darkness of night. But light shone ahead; another abrupt turn brought day again, and then wide open space.

Above Venters loomed a wonderful arch of stone bridging the canyon rims, and through the enormous round portal gleamed and glistened a beautiful valley shining under sunset gold reflected by surrounding cliffs. He gave a start of surprise. The valley was a cove a mile long, half that wide, and its enclosing walls were smooth and stained, and curved inward, forming great caves.

He decided that its floor was far higher than the level of Deception Pass and the intersecting canyons. No purple sage colored this valley floor. Instead there were the white of aspens, streaks of branch and slender trunk glistening from the green of leaves, and the darker green of oaks, and through the middle of this forest, from wall to wall, ran a winding line of brilliant green which marked the course of cottonwoods and willows.

"There's water here--and this is the place for me," said Venters.

"Only birds can peep over those walls, I've gone Oldring one better."

Venters waited no longer, and turned swiftly to retrace his steps. He named the canyon Surprise Valley and the huge boulder that guarded the outlet Balancing Rock. Going down he did not find himself attended by such fears as had beset him in the climb; still, he was not easy in mind and could not occupy himself with plans of moving the girl and his outfit until he had descended to the notch. There he rested a moment and looked about him. The pass was darkening with the approach of night. At the corner of the wall, where the stone steps turned, he saw a spur of rock that would serve to hold the noose of a lasso. He needed no more aid to scale that place. As he intended to make the move under cover of darkness, he wanted most to be able to tell where to climb up. So, taking several small stones with him, he stepped and slid down to the edge of the slope where he had left his rifle and boots. He placed the stones some yards apart. He left the rabbit lying upon the bench where the steps began. Then he addressed a keen-sighted, remembering gaze to the rim-wall above.