Everyone has a secret they'll do anything to hide… Twenty-five years ago, the body of sixteen-year-old Eve Knox was found in the caves near her home in small-town Grotto, Iowa—discovered by her best friend, Maggie, and her sister, Nola. There were a handful of suspects, but without sufficient evidence the case ultimately went cold. For decades Maggie has been haunted by Eve's death and that horrible night. Now a detective in Grotto, and seven months pregnant, she is thrust back into the past when a new piece of evidence surfaces. As Maggie investigates and reexamines the clues, secrets about what really happened begin to emerge. But someone in town knows more than they're letting on, and they'll stop at nothing to keep the truth buried deep. “A twisty, evocative tale [that] intertwines page-turning suspense with characters that creep into your very bones…. An exhilarating thriller.” —Christina McDonald, USA TODAY bestselling author of The Night Olivia Fell