With his family caught in the crosshairs of a group of brutal killers, Detective Cork O'Connor must solve the murder of a young girl in the latest installment of William Kent Krueger's unforgettable New York Times best-selling series.

During a houseboat vacation on the remote Lake of the Woods, a violent gale sweeps through unexpectedly, stranding Cork and his daughter, Jenny, on a devastated island where the wind has ushered in a force far darker and more deadly than any storm.

Amid the wreckage, Cork and Jenny discover the body of a teenage girl. She wasn't killed by the storm, however; she'd been bound and tortured before she died. Nearby, underneath a tangle of branches, they also find a baby boy, hungry and dehydrated, but still very much alive. Powerful forces intent on securing the child pursue them to the isolated Northwest Angle, where it's impossible to tell who among the residents is in league with the devil, but Cork understands that to save his family he must solve the puzzle of this mysterious child whom death follows like a shadow.