Fourteen-year-old cousins Gwen and Vic have been raised together by his father ever since Gwen's parents mysteriously died and Vic's mother disappeared. When Vic's father accidentally transports them through a magical doorway to the island of Elantya, Vic and Gwen are caught in a tempest of ancient magic and fierce battles. Thrust into the middle of an age-old conflict between the sea-dwelling merlons and the bright and dark sages, the cousins' begin to discover their own mysterious roots.