Tom Horn and the Apache Kid — Andrew J. Fenady

Geronimo! The mighty Apache chief was the most wanted man in the West. When the U.S. Army turned to the legendary scout Al Sieber to find Geronimo's hiding place in the Sierra Madre mountains, Sieber knew just the men for the job--Tom Horn and the Apache Kid. No one else stood a chance of finding Geronimo and coming back alive. But the ultimate test of skill, courage--and duty--will come when one old friend must track the other, along a trail that can only lead to death.