“Double trouble,” Jack added with a grin.

By two o’clock doubt again began to assail the climbers. The going was hard once more, and the pass seemed as elusive as ever. The prospect of having to retreat a second time sent shivers of weariness down the spines of the Scouts.

“If we don’t make it today, we’ll have to turn back to Elks Creek,” Mr. Warner announced.

Presently, from a high point which gave a clear view of the surrounding peaks he made another careful survey. Impatiently, the others awaited his verdict.

“I think I see what might be called twin peaks,” he said finally. “If so, we’re close to the pass.”

His words cheered everyone. Jack even hummed a little tune as he tramped on. The heavy pack actually felt lighter on his back.

The feeling of exultation grew as signs gave increasing encouragement that this time their way would not be blocked. Soon the Explorers came out on the round top of the mountain.

While the others drank in the view, Warner and Jack searched for a way down into the green valley.

“You can see the tiny lake from here,” the rancher pointed out. “We ought to reach it before nightfall. And if all goes well, the plane should soon drop our supplies.”

After careful consideration, Warner selected a route down which did not look too difficult. Mr. Livingston and Ken were willing enough to leave, for the bald dome was wind-swept and uncomfortably chilly. Patches of snow lay in the more protected crannies.