Geronimo Stilton and friends must travel back in time to stop the Pirate Cats and their latest mad scheme! This time, jealous that the face of a man was placed on the body of the Sphinx, the devious felines are determined to coerce the Pharaoh into changing the face of this monument. Its up to Geronimo and co. to travel back in time and stop the Pirate Cats before it's too late. If Geronimo fails to thwart the Pirate Cats’ plans, the face of history will be changed forever – literally!"