Geronimo Stilton is the editor of The Rodent Gazette, the most famous paper on Mouse Island. In his free time he loves to tell fun, happy stories. In this adventure, Geronimo has to face his worst enemies, the Pirate Cats, who have discovered a way to travel back in time and change historyâ€¦They want to change the face of the Great Sphinx into a catâ€™s face! Can they possibly trick the Pharaoh Chephren into making this happen? And how can Geronimo Stilton possibly stop them?