Blood roars in Josie's ears as they circle the tree in the deep snow. A woman lies still on the freezing ground. The howling wind lifts the last of the snow clinging to her face, exposing her lovely features, frozen in forever sleep. Detective Josie Quinn is still recovering from the killing of a beloved member of her team when she and her husband Noah receive yet more devastating news. Close to her breaking point, Josie heads to a specialist trauma retreat, set in an isolated group of log cabins in the mountains of Pennsylvania. But fear is not far behind her. Josie's five fellow patients all seem to be hiding secrets darker than just the problems that brought them there and a storm is gathering, with thick snow coming down fast, isolating the cabins from the world below. Then one morning, Meg Cleary disappears. Having spent years living in terror of a stalker, Meg had come to the retreat to try to piece her life back together. But now, her cabin is empty, no logs are burning in her fireplace, no tracks in the snow lead to or from her door. Quickly organizing a search, Josie's worst fear is realized when she finds Meg's body lying in the snow, the marks around her neck revealing that her death was no accident. And this is no normal case, as Josie is stranded without her team, a phone signal or any legal authority to investigate. When she discovers that someone has placed hidden cameras inside the retreat buildings, Josie's terror grows with the knowledge that the murderer is among them. Then another patient goes missing. With their food supplies running low and no chance of escape, Josie knows that she is in the greatest danger of her life, and that she alone has a chance to identify the killer and save the rest of the group before it's too late. A totally compelling crime thriller, from an Amazon, USA Today and Wall Street Journal bestselling author. Perfect for fans of Angela Marsons, Robert Dugoni and Rachel Caine.