When Wild Willie showed up at my door and invited me to travel with him to Japan, I jumped at the chance. We were in search of an ancient, legendary samurai scroll that holds the secret to a long-lost fighting technique. The scroll had fallen into the wrong hands, and it was up to me and Wild Willie to track it down and save the day. But first, we would have to fight a group of talented ninjas. Holey cheese -- this would be one adventure I would never...

When their cousin becomes trapped in Transratania, Geronimo's sister Thea involves him in her rescue mission.

The Thea Sisters are five fun, lively students at Mouseford Academy on Whale Island, who want to be real, live journalists, just like their hero, Thea Stilton. Between classes, friendships, crushes, and some bizarre mysteries to solve, they find life to be a never-ending adventure!

Trap and Geronimo team up in an attempt to win a race to Boulder Bay and back, a race that supplies the village cheese maker with rare hot lava peppers, and comes with a large cash prize.

It was Halloween, the spookiest day of the year. And it seemed like everyone was out to play tricks on me, Geronimo Stilton. Things went from bad to worse when my nephew Benjamin dragged me to a graveyard to do research for my newest book. There I met Creepella von Cacklefur, a very spooky mouse who - yikes! - tried to lock me up in her coffin! Oh, how would a 'fraidy mouse like me ever survive the year's scariest holiday?

Tessa, an aspiring investigative journalist, travels to Ecuador as she investigates the sudden death of young cycling superstar Juan Carlos Macias-Le©đn at a charity bike ride.

Emma, the plucky investigative journalist-to-be, is back with another story to report. Fresh off of her last mystery solved, Emma has attained her much-longed-for celebrity status at school. When strange things happen, students turn to Emma for help. She unravels each case by searching for clues and recording her findings in video news reports. Now her friends Sophia and Javier have joined her reporting team. The three of them come up with a group...

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!

Phantom of the subway: When he hears reports of a ghost haunting New Mouse City's subway tunnels, Geronimo sets out to investigate. Temple of the Ruby of Fire: Geronimo, Thea, Trap, Benjamin and Geronimo race against time to find the legendary Ruby of Fire before it falls into the wrong paws.