"Strange things are happening at the New Mouse City Museum... Reports of a mummy walking around the new Akhenraten exhibit are frightening away visitors! Geronimo Stilton, editor of the famouse Rodent's Gazette, decides to investigate, along with Thea, Benjamin, and Trap. Is this museum-marauding mummy just a hoax...? Or will Geronimo find a mouse from beyond the grave?"--Back cover.