When the mutilated remains of a young woman are found in an Appalachian Mountain cave, newly sworn-in deputy sheriff Brynn Callahan is forced to track down a killer driven by twisted motives . . . Not long after donning the uniform of the McCreary County Sheriff's department in Bone Gap, Tennessee, ex-Marine Brynn Callahan faces her first official homicide. On a cold February morning, a lone cross-country skier stumbles across the mutilated body of a young woman. Sent to investigate, Brynn is shocked when she recognizes the victim as a fellow Traveller, Maura Keene. Maura held a solid standing both within the Travellers' insular community and among the settled townspeople—a fact that makes her murder all the more disturbing to Brynn, who also straddles the two worlds. After her trained K-9, Wilco, digs up human bones, and then a scrap of paper scrawled with arcane Latin phrases is uncovered, Brynn finds evidence leading her to question those...