Business has never been better for Campion`s Palace of Variety and Wonders - and the music hall is about to open its doors to its biggest act yet: the Illustrious Gandini, the stage magician known as the Great Wizard of the North. But when the Doomstone Diamond - a priceless jewel with a disturbing history - is stolen during one of Gandini`s performances, Campion`s finds itself under threat once more, and Rose Campion and her friends will need all their wits about them to find the thief and uncover the secrets of the magician`s mysterious past...