One of them was down now.

But the other was raised two inches, so that one hidden within the cabin could watch the approach from the trail! He drew back, and under his breath he chuckled.

He recognized the sheer nerve of the thing, the clever handiwork of it.

Someone was inside the cabin, and he was ready to stake his life it was Cassidy, the Irish bloodhound of "M" Division.

If anyone ferreted him out way down here on the edge of civilization he had gambled with himself that it would be Cassidy.