Geronimo Stilton, top reporter for The Rodent's Gazette, keeps has a reputation of breaking the top news stories first to the citizens of New Mouse City. But lately, Sally Ratmousen of rival Paper "The Daily Rat," has been leaking Geronimo's secret scoop! Can Geronimo keep the lid on a surprise celebrity guest to the city's 100 year celebration or will Sally rat him out?

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...

While investigating the mysterious brie-smelling monster roaming around the port of New Mouse City, Geronimo and his friends are derailed from their mission by the dreaded Captain Blackrat, who commandeers their ship.

When Professor Cheesewheel outfits busy editor-in-chief Geronimo Stilton's house with the latest technology to help keep it clean, the intrepid Geronimo is in for a future shock as his house goes haywire, leaving him with a mess bigger than before!

"When Geronimo Stilton gets signed up for a dating app, will he get matched with the rodent of his dreams, or will it be a mismatch? Thea Stilton worries Geronimo Stilton, her brother and famouse Editor-in-Chief of The Rodent's Gazette, may be living the lonely bachelor life. With Ben's help, they sign Geronimo up for a dating service. But what happens when the service gives him the most unlikely match?!"