Geronimo Stilton's dealt with mummies, ninjas, and pirates, but this may be the first time he's come face to face with... ghosts! Can the scaredy-mouse overcome his fears and get to the bottom of the mystery for a big scoop for his newspaper, The Rodent's Gazette? For help, who's he gonna call? His ghost-bustin' relatives, of course! Geronimo and his family need to travel to a haunted museum in Africa for this globe-trekking, teeth-chattering spooky adventure, whether Geronimo likes it or not!