Best Selling Books by Thea Stilton

Join Thea Stilton and the Thea Sisters on an adventure packed with mystery and friendship! The Thea Sisters head to Capri for a new adventure!

Violet has been chosen to play in the orchestra for a production of Romeo and Juliet in London! The mouselets begin to notice strange things happening during rehearsals. Someone is trying to sabotage the production. Can the Sisters uncover the phanto

Geronimo's adventurous sister Thea narrates this fabulous adventure that's packed with action, mystery, and friendship!The Thea Sisters are off to New York City for another fabumouse adventure! Nicky has been training to run the Big Apple Marathon, and her friends are there to support her. While in the city, they all visit Pamela's family and have a delicious dinner at the family's pizzeria. But the mouselings discover that someone has been threatening to burn the restaurant down, and Pam's family might have to close it for good to stay safe! Will the Thea Sisters catch the troublemaker before it's too late?

The Thea Sisters are off to save the rainforest in Malaysia.

Mouseford Academy is celebrating their 600th anniversary and the headmaster and teachers decide to put on a play of the famous Mouseo and Juliet. The Thea Sisters want the role of Juliet but so does their rival, Ruby Flashyfur.

Join Thea Stilton and the Thea Sisters on an adventure packed with mystery and friendship! The Thea Sisters spend the holidays in Rome!

When the Thea Sisters' friend Bridget returns to Scotland for a family emergency, the five mice offer to help. And when Bridget goes missing, they have to rush to Scotland to find her! Along the way, the Thea Sisters encounter Celtic legends, cryptic messages, and hidden treasures on a trip that's full of surprises!

On summer vacation in Scotland, the Thea sisters are intrigued by a tapestry that is really a treasure map supposedly leading to a hidden alabaster garden where an ancient treasure is buried, and the story of Aurora Beatrix Lane, an adventurous explorer mouse--and when the tapestry is stolen they set out to find the treasure using the explorer's diary as a guide.

"The famous Chef Crouton is teaching a course at Mouseford Academy on healthy eating and the Thea Sisters are chosen to compete on a special episode of his TV show! What do you get when you mix five friends, a cooking contest, a visiting brother, a few misunderstandings, and a pinch of drama? The perfect friendship recipe, of course!" -- Back cover.

Using the clues found in Aurora Beatrix Lane's travel diary, the Thea Sisters continue their search for the seven lost treasures; and the object this time is the Ring of True Love, a journey that begins in Verona, Italy, with the story of Romeo and Juliet and takes them around the world.

When the Thea Sisters discover a mysterious old mirror hidden in a dusty attic at Whale Island College, they’re suddenly transported into a fantastical realm where nothing is quite as it seems. They’ve entered the Land of Erin, a magical world threatened by dark forces — and the mirror may be the only key to saving it. As they journey through enchanted forests, shimmering lakes, and hidden kingdoms, the Thea Sisters must solve ancient riddles, brave dangerous obstacles, and stay united to uncover the truth behind the mirror’s magic. Time is running out, and the fate of an entire world rests in their paws.

"While exploring a remote part of Whale Island for a class project, the Thea Sisters stumble on a group of researchers studying migrating butterflies. Eager to learn more about the beautiful creatures, the mice volunteer as assistants. But when a TV crew shows up unexpectedly, there's drama in the camp! the butterflies may be in danger, and it's up to the Thea Sisters to protect them. It's a colorful adventure they'll never forget!"--back cover.

Thea's friends the Thea Sisters travel to Australia where the investigate why the sheep at Nicky's family's ranch are losing their wool.

Join Thea Stilton and the Thea Sisters on an adventure packed with mystery and friendship! The Thea Sisters are visiting a friend in Ecuador who has a sweet job—he runs a chocolate factory! His factory is in the running for a major award for its environmental methods. But suddenly, chocolate production starts to malfunction. Is it sabotage? It's up to the Thea Sisters to solve this mouthwatering mystery!