The leading canoe slowed up while the boys approached.

“It certainly does, Jack,” said his father. “What do you make of it, Farnum?”

The latter shook his head, puzzled.

“I don’t know,” he said. “You must remember this is unexplored country. We’re liable to find anything here. But, maybe——”

“What?”

“I don’t know. We’re near the Coppermine, aren’t we, Art?”

“Figure we must be.”

“Maybe this stream flows into the Coppermine.”

“I’ll bet that’s it,” Art approved. “The waters of that lake empty into the Coppermine. Yes, sir; I’ll bet that’s what it is. Well, that makes travel easy for awhile, anyhow.”

Two days of travel, unbroken by any but routine incidents such as the occasional shooting of wild duck Or geese, brought the party at camping time at the end of the second day to a pleasant, open, grassy prairie between two low-wooded hills. Here it was decided to make camp.