The book ‘A Tree of Bones’ is written by Gemma Files. ‘A Tree of Bones’ is the 3rd book in the Hexslinger Trilogy. The story is set in New Mexico, in 1867, and the story is about the aftermath of Hexslinger Chess Pargeter’s sacrifice to restore Bewelcome. The book analyzes themes of ruin, redemption, and the lengths one will go to protect those they care about.