In this third installment of the Secrets of the Twilight Djinn series, Max Daybreaker finds himself stranded on the Isle of Sanctus. The Spice Pirate ship, the Saucy Pig, is broken and burnt, and Captain Cinn and his crew are marooned. Max begins school at the Academy of Elemental Magic, overseen by a powerful witch, Mistress Pandora. Max uncovers the dark secrets about the island with its ominous tower, The Citadel of Light, at its center. Max must trust his friends, both old and new, to survive the darkness invading his world, free his best friend Mesha, and escape the island before he is trapped there forever.