The dream always begins the same way for fifteen-year-old Coral Dover. She enters the ocean alone and ends up in a cave on the back of a dolphin. It's happened every night for the last eight years since her parents disappeared. Coral longs to visit the place where her parents' plane went down, and she finally gets her wish when her aunt takes her on a working vacation to Hawaii. When Coral notices unusual things happening around her, only one other person believes her. Will they discover the secret that could change everyone's lives? Can Coral keep her family safe as she pursues her dream?