Geronimo Stilton sets out to crack the secret hidden in Mouse Island's most famous painting, the Mona Mousa; and in the second story, Geronimo and his grandfather pack up the cheese-colored camper and travel to a remote spot on the island so Grandfather could write his travel book.
Geronimo Stilton, publisher of "The Rodent's Gazette" in New Mouse City, travels with his friends to the Ratlapagos Islands in search of treasure, and soon begin to suspect they are not the only ones involved in the quest.
Geronimo Stilton and his family travel to Penny Pincher Castle to visit his uncle, Samuel S. Stingysnout, and tries to uncover who, or what, is behind the creepy occurrences that have been taking place at the castle.
Geronimo Stilton receives a crystal figurine of a boat as a gift from his crush Petunia Pretty Paws, and when he discovers a mysterious message inside the gift asking for help in Italy, he immediately travels to Venice to save the day.
The Thea sisters are off to Japan on a cultural exchange program and while they're busy exploring Kyoto and admiring the beautiful cherry blossoms, a valuable item is stolen from their friend Kumi's family. The five mice investigate to help catch the thief.
Geronimo Stilton and friends travel back in time to Ancient Egypt to stop the Pirate Cats from coercing the Pharaoh into changing the face of the Sphinx from a man to a cat.
