Sheriff Walt Longmire is sinking into a high-plains winter discontent when his former boss, Lucian Connally, asks him to take on a mercy case outside his jurisdiction. Detective Gerald Holman of neighboring Campbell County is dead, and Lucian wants to know what drove his old friend, a by-the-book lawman with a wife and daughter, to take his own life. With the clock ticking on the birth of Walt’s first grandchild in Philadelphia, he enlists the help of undersheriff Vic Moretti, Henry Standing Bear, and Gillette policeman Corbin Dougherty and, looking for answers, reopens Holman’s last case.Before his mysterious death, Detective Holman was elbow-deep in a cold case involving three local women who’d gone missing with nothing to connect the disappearances—or so it seemed.