"While visiting a filmmaker friend on the set of a new movie with Thea, Benjamin, and Pandora, reporter Geronimo Stilton investigates mysterious accidents that are plaguing production and causing the film to go off course."--Provided by publisher.

When reports of a mummy terrorizing the New Mouse City Museum flood the Rodent's Gazette's telephone lines, Geronimo Stilton, editor-in-chief, searches for an explanation to prove that there is no mummy.

"Geronimo Stilton publicly insults famous Chef Ricardo on his cheese selection in his own restaurant. Geronimo Stilton cuts ahead of an an elderly woman in line. Geronimo Stilton steals ice cream from a little girl. All around New Mouse City, the once upstanding Editor-in-Chief of The Rodent's Gazette is wreaking havoc. Could Geronimo be suffering amnesia? Is he mind controlled? Or has he finally joined the dark side? Only Benjamin, Thea, and Trap...

Geronimo Stilton is invited to a rat-jitsu martial arts championship in a snowy faraway land, much to the famouse reporter's surprise. With his helpful relatives, Thea, Trap and Benjamin, Geronimo goes to cover the event for the Rodent's Gazette. But something strange is happening. After each championship match, the winner disappears without a trace! Will Geronimo get involved and solve the mystery of the missing martial artists? Or will he be consumed...

"Geronimo Stilton is granted a special interview with the great Sourishi, who lives in isolation and rarely gives interviews. To reach him, Geronimo and company must take the Rodent-Express, a steam engine that zigs and zags across perilous terrain and steep mountains. But, during the journey, Bugsy Wugsy mysteriously disappears! Can Geronimo crack the case before the end of the line?"--Provided by publisher.

"Geronimo and friends have to get to the bottom of a crown jewel of a case! Checkmate, cheese-lovers, er, we mean chess-lovers. For once, all is quiet in New Mouse City, so Geronimo Stilton, Editor-in-Chief of The Rodents Gazette can report on an incredible chess match-up. On one side, Gary Goudov, world-renowned chess champion, and on the other side, a super chess-playing computer! But after Geronimo leaves, the infamouse Gem Gang commits a string...

"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...