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.

Geronimo agrees to climb Mount Kilimanjaro with his adventurous friend Bruce Hyena.

From the Jurassic period and the dinosaurs, to a medieval castle, Geronimo Stilton and a few members of his family embark on an adventure through time in Professor von Volt's new time machine, the Mouse Mover 3000.

Selected by the mayor to give a special driving demonstration, Geronimo Stilton realizes his driver's license has expired and he must do everything he can to pass the test again, learn about a new robot car, and catch a thief.

Geronimo Stilton is summoned back to the Kingdom of Fantasy, but he finds Blossom, Queen of the Fairies, surrounded by dark fairies and behaving very coldly--and it is up to Geronimo to figure out just what is going on and find the allies he needs to free Blossom from the evil spell that is affecting her.

"Professor Greenfur, the onboard scientist on spaceship MouseStar 1, has changed color from green to--orange! What's going on? To find out, the spacemice travel to his home planet of Photosyntheson. There, they learn that all of Professor Greenfur's relatives are being threatened by the nibblix, tiny aliens with very sharp teeth! Can the spacemice help in time?" --

Geronimo Stilton and his sister Thea search for a secret map hidden beneath a famous painting and soon uncover some amazing clues.

Once again Geronimo Stilton is pulled into the Kingdom of Fantasy, where he is needed to fulfill the ancient Gemstone Prophecy, and prevent Scorcher, the evil Empress of Witches, from obtaining the Royal Sapphire which will give her immense power.

Geronimo's friends and family help him get into shape for the big race after he is accidentally signed up for the Mouse Island Marathon. Includes tips for becoming a fit athlete and being a good sport.