Drawn once again into the Kingdom of Fantasy, Geronimo discovers that the Land of Books is being threatened by a wave of grayness spreading from the Kingdom of Swamp Valley rotting books and turning all the characters gray, sad and worried--and it will be up to Geronimo, Winglet (daughter of Blossom and newly crowned empress), and the intrepid characters from fiction who join them along the way, to locate the source of this new evil and put a stop...

"It's the most exciting race the city has ever seen. Geronimo wants no paw in it, but it's a matter of Stilton family honor. The cars are fast, the road is winding, and the racers are...cheating! Can Trap and Geronimo figure out who is rigging the race?"

"The Thea Sisters are headed to Italy for a ballet competition! But the mouselets aren't just there to dance -- they are there to investigate. A group is plotting to rig the prestigious contest, and the future of their new friend -- an aspiring ballerina -- is at stake! Can the Thea Sisters stop this scheme before it's too late?"--Page [4] of cover

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

"When the Thea Sisters' friend Ashvin is in trouble, they rush to his aid--in India! Ashvin has been working to return the monkeys living in the big city to their natural jungle environment. But the monkeys have suddenly started stealing jewels! Can the Thea Sisters figure out who is behind this terrible theft?"--P. [4] of cover

Thea Stilton and her sisters travel to the magical land of clouds to discover why the clouds are disappearing

Attending an art class in the Netherlands, Violet journeys through the flower gardens, windmills and canals of Holland to investigate the untimely disappearance of her friend's father, a renowned botanist whose absence is linked to a rare black tulip

Translation of : Sfida a ritmo di danza! The Thea Sisters are thrilled about the new performing arts program being offered at Mouseford Academy. That is, until they meet the head of the department--the demanding and strict Professor Ratyshnikov. The mouselets will have to audition just to get into her class! On top of the that famouse ballerina is an old friend of Headmaster de Mousus, but the two no longer get along. It's up to the Thea Sisters...

The micekings are in a panic. The village's best cook is ill, and until she recovers, there's no delicious stew to eat! Geronimo Stiltonord departs immediately in search of a cure for her. But on the way, he ends up snout-to-snout with terrifying dragons! Can he make it back with his fur intact?

"The Thea Sisters are headed to Venice, Italy! They'll be there for the Carnival, an annual festival that's famouse for its elaborate masks. The mouselets love exploring the city's bridges and canals, and seeing the beautiful costumes mice wear to Carnival celebrations. But a mysterious thief strikes while they are there! Can they unmask him before the festival ends?"--Page 4 of cover