A troubled cop seeks to save his son from a killer in Yellowstone in the novel that sets the scene for Big Sky, now a hit TV show, from award-winning author and New York Times bestseller C.J. Box. Twilight falls on a cold, wet spring day in the mountains of Montana. A cabin smoulders in the forest. In the remains of the kitchen, a table set for two; next door, the remains of a single body. Detective Cody Hoyt is called to the scene. A brilliant cop, Cody is also an alcoholic struggling with sobriety and it doesn't help that the body in the cabin is his AA sponsor, Hank Winters. It looks like a suicide, but Cody knew Hank better than that. He's convinced its foul play. After years of bad behaviour directly related to his drinking, Cody has few friends left in the department, but Hank was a true friend and Cody is determined to find his killer, badge or no badge. Investigation leads Cody to a website running wilderness adventures in Yellowstone National Park. Their big trip of the year has just left: a two-week horseback journey into the wild. The very same trip that Cody's estranged teenage son, Justin, has signed up for... Cody has no choice but to trek deep into America's greatest wilderness in pursuit of his son and the truth. Cody is on his own, he's out of time, he's in too deep, he's in the Back of Beyond. Reviews for Back of Beyond 'One of the most suspenseful wilderness thrillers since Deliverance.' Associated Press 'Terrifically entertaining.' Kirkus 'Timeless, gripping. Resembles an Agatha Christie whodunnit but with horses, bears, wolves and hunting rifles.' Publishers Weekly 'A perfect introduction to the novels of C.J. Box.' Booklist