“As I get it, it’s your plan, Larry,” he said. “Can’t you pull it off alone?”

Before Larry could answer, Dick broke in hotly.

“Not in a thousand years, Jack Smith! It’s Larry’s notion, all right, but you couldn’t drag me out of it with a derrick!”

Smith looked away up the canyon to where some of the graders were retreating to be out of the way of a blast about to be fired. When the echoes of the explosion had died away he had made his decision.

“We’ll call it a Donovan chance and take a shot at it,” he announced crisply. “Hike down to the mouth of the canyon and take the truck for the drive back to camp. Tell the storekeeper that I sent you, and dig around in his stock until you find what you need. Where will you strike in?”

It was Larry who answered.

“Half a mile or so above here there’s a place where there are two big boulders in the creek bed. We’ll cross on them.”

“Good. I’ll rig up a temporary terminal there while you’re getting the stuff. Skip out now. Time’s valuable if you are going to accomplish anything worth while.”

Since time was valuable, the two boys wasted none of it in the race back to the trail-end where the auto-truck had been left; and with the truck to facilitate things beyond the canyon portal they were soon at the headquarters camp.