When Rose Colter's car breaks down in the Nevada desert, the silence of the night is broken by a radio broadcast of a voicemail message from her best friend, Gaby. The last one Gaby left before she died, years ago. Rose follows the lights from the closest radio tower to Lotus Valley, a small town where prophets are a dime a dozen, secrets lurk in every shadow, and the diner pie is legendary. According to Cassie Cyrene, the town's third most accurate prophet, Rose's arrival is part of a looming prophecy, one that says a flood will destroy Lotus Valley in just three days' time. Rose believes if the prophecy comes true then it will confirm her worst fear: the PTSD she was diagnosed with after Gaby's death has changed her in ways she can't face. With help from new friends, Rose sets out to stop the flood. -- adapted from jacket