A disgraced cop with a history of alcoholism, Cody Hoyt is also a bulldog investigator. When his AA sponsor turns up dead, Cody determines that the killer is one of 14 dudes on a weeklong expedition in Yellowstone National Park; Cody's son is also on the trip. While struggling to figure out who and why, and where they are in the wilderness, Cody also searches for redemption on behalf of his friend. Following 2008's Blue Heaven, this is the author's second stand-alone thriller to take place in the wild. As Box has shown in his Joe Pickett series, he knows life and death in the backcountry like few other writers today.