From The New York Times bestselling author of Blue Heaven and Back of Beyond comes a gripping new thriller When teenagers Danielle and Gracie Sullivan take a clandestine car trip to visit their friend in Montana, little do they know it's the last time anyone will ever hear from them again. The girls and their car simply vanish. Cody Hoyt, who's just lost his job and has fallen off the wagon after a long stretch of sobriety, is in no condition to investigate...