The Forbidden Stone

RICK RIORDAN meets DAN BROWN in this epic historical adventure series packed full of puzzles, clues and edge-of-your-seat excitement!Legend has it that Copernicus found twelve powerful relics that could harness the cosmos and transport people through time when assembled in the shape of an astrolabe. Recognising the astrolabe’s terrible power, Copernicus hid the relics in far-flung corners of the globe and assigned loyal Guardians to pass down the duty of protecting the relics across the ages.In the wrong hands, the astrolabe could control the world. That’s exactly what Galina Krauss and her powerful Teutonic Order plan to do once she collects all the pieces and reassemble…