Dora, athletic of build and sure-footed, refused Dick’s proffered aid, depending on the scraggly growths in the crevices for support until they reached a spot where only prickly-pear cactus grew.

“Now, Miss Independent,” Dick laughingly called up to her, “you would better put one hand on my shoulder and let me be your human staff.”

This plan proved successful until, in the descent, they came to a spot where the ledge below was farther than the girls could step. Jerry held up his arms and lifted Mary down. That was not a difficult feat since she was but a featherweight. Dora, broad shouldered for a girl and heavily built, was more of a problem. The boys finally made steps for her, Jerry offering his shoulders and Dick his bent back.

Dora, flushed, excited, glanced at the ledge above as she exclaimed, “Getting up again will be even more difficult.”

“We won’t cross bridges until we get to them,” Dick began, then added, “or climb mountains either. Going down at present requires our entire attention.”

But the narrow ledge-steps continued to be accommodatingly close for about fifteen feet; then another sheer descent was covered by repeating their former tactics.

“There, now we’re on the wide ledge,” Mary said, “and we can’t see a single thing that’s beneath us.” Then she cried out as a sudden alarming thought came to her. “Oh, Jerry, what if our weight should cause a rock-slide, or whatever it’s called, and we all were plunged—”

“Pull in on fancy’s rein, Little Sister!” the cowboy begged. “You may be sure I examined the formation of this ledge before I lifted you down upon it.” Then, turning to Dora, he said, “I reckon you and Mary’d better stay close to the mountain while Dick and I worm ourselves, Indian fashion, to the very edge where we can see what’s down below.”

“Righto!” Dora slipped an arm about Mary and together they stood and watched the boys lying face downward and wriggling their long bodies over the flat, stone ledge.

Dora noticed how slim and frail Dick’s form looked and how sinewy and strong was Jerry.