A Quest for Adventure: David Horton's Conquest of the Appalachian Trail and the Trans-America Footrace

From the rear cover of this 223-page book: "Two races. Two challenges. Both grueling, but very different from each other. The first race against time in terms of days, the elements, and the roughness of the terrain. The second was a race against time in terms of hours and minutes, against other competitors, and the redundancy of thousands of miles of pavement. However, there was a common foundation to the two events. Both were incredibly difficult. Both required conquering the severe bouts of depression that invaded the mind of this endurance athlete. Both required conquering the mentally debilitation and physically crippling injuries associated with running mile after mile, day after day. Both required the mental toughness and fortitude that so few in our society possess. And both required an unquenchable quest for adventure."