During the early 1940's in Idaho's expansive Selway-Bitterroot wilderness, a few items disappeared from a tent camp, then from a lookout tower, and a ranger station. Eventually, the continuing loss of food and supplies at such isolated sites confirmed the presence of a mysterious stranger. For years no one saw him, even though he entered forest service quarters while employees slept. In the winter, when he did leave tracks, they were found on the most inhospitable ridges and earned him the regard of locals who could appreciate the severe conditions and hardships of survival under such circumstances. The forest service, determined to catch him, sent out their best...