A redemptive and captivating novel from the No. 1 bestselling author of PS. I Love You. Ever wondered where lost things go? Ever since the day her classmate vanished, Sandy Shortt has been haunted by what happens when something – or someone – disappears.Finding has become her goal. Jack Ruttle is desperate to find his younger brother who vanished into thin air a year ago.He spots an ad for Sandy's missing persons agency and is certain that she will answer his prayers and find his brother. But then Sandy disappears too, stumbling upon a place that is a world away from the only one she has ever known.Now all she wants, more than anything, is to find her way home.