Geronimo Stilton who lives in New Mouse City, the capital of Mouse Island, goes undercover to find an important missing document.

Geronimo Stilton participates in the Race Across America on his bicycle with his friend Bruce Hyena.

Geronimo and friends go to the Eyptian Museum just before Halloween to investigate what seems to be a real live mummy.

"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...

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...

Using the clues found in Aurora Beatrix Lane's travel diary, the Thea Sisters continue their search for the seven lost treasures; and the object this time is the Ring of Eternal Love, a journey that begins in Verona, Italy, with the story of Romeo and Juliet and takes them around the world.

"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.

When an evil professor begins threatening New Mouse City with terrible inventions, Geronimo Stilton is enlisted by local authorities to embark on a top-secret mission to outer space to thwart a nefarious plot.

Geronimo tries to help his cousin Trap when he enters the Super Chef contest, but seems to have no idea how to cook.

Geronimo is in the Kingdom of Fantasy for training on the "Balanced Path" when he learns that Queen Blossom has had a beautiful baby girl, Winglet, and that the baby princess has been kidnapped--and it is up to the brave mouse as Guardian of the Realm to discover who has taken Winglet, and return her to her distraught parents.