When Bart Barnacle decides he's ready to return to his pirate island home, the Stiltonoots accompany him on the dangerous journey.

Geronimo and his friends discover a huge oyster with an enormous pearl inside. After a feature article in the Rodent's Gazette, can they protect it from being stolen?

When a giant oyster is discovered in the lagoon near Old Mouse City, Geronimo Stiltonoot must help the mice of the lagoon fish it out of the water to get the pearl before the saber-toothed tigers catch wind of it.

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.

Grandfather Shortpaws sends Geronimo Stilton on a hunt for his old friend, the Red Bandit, in Arizona.

"Geronimo Stiltonoot and friends have been invited to participate in a Stone Age treasure hunt! How fun! The one issue is that it has been set up by Gossip Radio host Sally Rockmousen, Geronimo's rival. Is it some sort of trick? The hunt is full of difficult riddles and very stinky dinosaurs... but nothing will stop Geronimo's team!"--Back cover.

Geronimo Stilton's ancestor, Geronimo Stiltonoot, must prove his innocence when the grand prize from the Cavemouse Idol competition is stolen.

Traveling to the planet Jurassix to warn its inhabitants of an imminent comet strike, Geronimo Stilton and his crew encounter ferocious, dinosaur-like beasts who have an appetite for rodents.

When the quest to find a cure to an epidemic targeting the citizens of New Mouse City is sabotaged, Geronimo Stilton must figure out who's behind it all before he ends up covered in blue spots too.

When they receive a damaged message in a bottle from the Oofa Oofa rodents in the ancient far north, Geronimo Stiltonord and the micekings set sail to Oofadale but are attacked by a band of dragons while on their voyage.