Geronimo's adventurous sister, Thea, narrates this fabulous adventure that's packed with action, mystery, and friendship!During a marine biology lesson at Mouseford Academy, the Thea Sisters learn about a mysterious shipwreck off Whale Island. According to legend, a very rare diamond called Jasmine's Heart was on the ship when it sank. When biology teacher Professor Van Kraken disappears, the Thea Sisters have to dive into the deep ocean to find him and the jewel. And just when they think their adventures are over, the Thea Sisters receive an invitation to travel to China to find another missing treasure. It's an adventure these five world-traveling mice will never forget!

Join Thea Stilton and the Thea Sisters on an adventure to find the seven secret treasures! The search for the seven secret treasures continues. In this incredible adventure the Thea Sisters come across the legendary Jewel of the Queen. They cross rivers of ice, deserts of fire, and other fascinating places on their journey to find it.

Join Thea Stilton and the Thea Sisters in their third magical special edition adventure! There's a mystery in the land of the lotus flowers!Thea Stilton and Thea Sisters are called to help to an enchanted land! It's a world linked to the legends of Japan, and it is in danger. The realm's special lotus flowers are disappearing, and no one knows why!The mouselets set off on a quest to solve this mystery. They must discover the secret of the lotus flowers -- but can they trust the strange magical creatures that they meet on their way? It's a fabumouse adventure!

Breakout star Creepella von Cacklefur is back in another fur-raising adventure!Oh, no! Billy Squeakspeare has a big problem, and he needs Creepella's help. Someone's been digging holes around Squeakspeare Mansion at night, and Billy wants to find out who it is. The dangerous, legendary pirate Morgan Darkwhisker is said to have buried his long-lost treasure near Squeakspeare Mansion years ago -- could he be hunting for his hidden riches? It's up to Billy and Creepella to find the treasure first!

Geronimo Stilton's ancient ancestor Geronimo Stiltonoot is back in another prehistoric adventure! Geronimo Stiltonoot and his family are off to find a cure for Grandma Ratrock's aches and pains. She's heard that a remedy hides in Cheesy-La, a legendary valley that Geronimo isn't even sure exists. Little does he know that getting there will be an adventure among geysers, volcanoes, and rivers of molten lava!

Holey cheese! Join Geronimo as he returns to the Kingdom of Fantasy for a third amazing adventure!In this 320-page, full-color hardcover adventure, Geronimo returns to the Kingdom of Fantasy when he learns that the Kingdom has fallen under an endless, freezing winter and the Queen of the Fairies is in danger. Once there, Geronimo explores fantastical new lands and travels on a magical talking ship. Can Geronimo extinguish a threatening volcano in time to restore peace and springtime to the Kingdom of Fantasy? He is put to the test on this extraordinary quest!

When you're with Geronimo Stilton, it's always a fabumouse adventure! While on assignment in Chichen Itza, Thea goes missing along with an ancient Mayan necklace. Geronimo is on the case to find them.

When you're with Geronimo Stilton, it's always a fabumouse adventure! Great Gouda! There were hearts everywhere in New Mouse City. My friend, Creepella, had started a new dating and wedding-planning agency, and she chose me as her assistant! But someone was trying to sabotage the matches. Could I figure out who before hearts are broken?

In this fun science fiction spin-off to the bestselling middle grade series, a mouse astronaut travels to an alien planet for a cosmic adventure. Meet Geronimo Stiltonix: He is a spacemouse—the Geronimo Stilton of a parallel universe! He is captain of the spaceship MouseStar 1. While flying through the cosmos he visits distant planets and meets crazy aliens. His adventures are out of this world! In You’re Mine, Captain! The MouseStar 1 is contacted by strange aliens whose ship has broken down! Geronimo Stiltonix is happy to help them out, and even accompanies them to their home planet Flurkon. But during his visit, the alien queen becomes enchanted by Geronimo—and wants to marry him! Will he be forced to stay on Flurkon forever? Praise for the Geronimo Stilton’s Spacemice series: “A wonderful science-fiction introduction for young readers.” —Kirkus Reviews Praise for Geronimo Stilton’s books: “Lightning pace and full-color design will hook kids in a flash.” —PUBLISHERS WEEKLY

Creepella and her niece investigate Squeakspeare Mansion in an attempt to interview ghosts.