FIVE DAYS. TWENTY STRANGERS. NO PHONE SIGNAL. The rafting trip was supposed to be the adventure of a lifetime. But now that Kaia's on the river, she's having second thoughts. Especially once the whispers about Camas Creek begin. Seven years ago, a guide murdered a group of rafters on this same isolated stretch of water. And while the killer’s body was recovered downstream, the true-crime community has never stopped asking questions. And for good reason. The accidents start innocently enough—but the pattern is sickeningly familiar. A flipped raft. Missing supplies. Sheer canyon walls on all sides. And eighty-four miles of whitewater until any sign of civilization. Kaia begins to suspect that one of the guides is lying. One of the guests knows more than they're saying. And somewhere on this river, someone is planning to finish what started at Camas Creek.