Sadie Myers is in a funk. Everyone who loves her seems to leave. No one remembered her fifteenth birthday - not even her parents. They have grown distant and moody ever since tragedy struck the family one year ago. Since that terrible day, Sadie's life has become a dark brew of strange visions, unearthly messages, and vivid dreams in which a mysterious shadow man follows her every move. Are all these bizarre happenings real or figments of a troubled mind? When Sadie is pulled into a world so different from her own, everything she thinks she knows is turned upside down. Will she find the truth behind these unsettling episodes? Sadie will need to muster every ounce of courage and resilience she possesses in order to walk through the shadows, the fear of unknown evil, and - most important - get to the other side alive.