While visiting Rome, Geronimo and Benjamin are pulled into the investigation of the ghost of a gladiator haunting the Colosseum and scaring tourists away.

Arriving in Brazil while dealing with squabbling family members, Geronimo Stilton must help his friend Isabela find a mysterious emerald.

Geronimo Stilton and Hercule Poirat investigate when a ghost starts haunting the Grand Hotel in New Mouse City and scaring the guests.

Geronimo Stilton has to risk his tail in a crazy TV game show in order to save his newspaper from a mysterious one-eyed rat.

When Geronimo's sister Thea gets into trouble while searching for treasure on Easter Island, he and his friends come to help.

Enter the world of Geronimo Stilton, where another funny adventure is always right around the corner. Each book is a fast-paced adventure with lively art and a unique format kids 7-10 will love.Oh, what a day! I had just published New Mouse City's first phone book -- and almost every single number was wrong! My customers were out for my fur. So when Thea, Trap, and Benjamin asked me to join their quest for a legendary island covered in silver, I agreed....

When the Cavemice discover a giant oyster in the lagoon near Old Mouse City, they call on Geronimo Stiltonoot to help them fish it out of the water before the saber-toothed tigers find the pearl.

Attending an ecological conference in Alaska, the Thea Sisters are introduced to local games and customs by their native Alaskan hosts before discovering that someone is endangering the ecosystem by using explosives to blow up the ice.

When their cousin is stung by a cavefly and falls into a deep sleep, Geronimo and Thea set out in search of the rare pink stinkrose, whose petals are thought to provide a cure.

Determined to earn a mouseking helmet, Geronimo Stiltonord undergoes special training conducted by Miceking chief Sven the Shouter.