“We’re not going to move ’em,” said Frank, “That would take us about five years of steady work. We’re just going to kick the snow loose.”

They attacked the heaps of rocks, prowling about, kicking gingerly at the snow, dislodging it from the hollows. For some time their efforts met with no success. But at last Biff, who had edged a considerable distance away from his companions, gave a sharp cry.

“I believe there’s something here, fellows!”

The others went running over to him.

“What have you found?”

Biff held up an object he had picked up from the snow.

“My foot bumped against this,” he explained. “It looks like a can of coffee from our supplies.”

“It’s the same brand!” declared Chet excitedly.

“We’ll hunt carefully all around here,” Frank decided. “Perhaps the thief just happened to drop that can of coffee as he was going toward the ice, but perhaps he didn’t. It’s worth making a good search.”

With this clue to guide them, the boys plunged into the search with feverish activity. The snow flew in clouds as they rolled away the rocks. After a while, Frank and Joe, dislodging a particularly large boulder, gave a yell of triumph.