Thea Stilton: 56 books

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...

Geronimo's adventurous sister Thea narrates this fabulous adventure that's packed with action, mystery, and friendship! The Thea Sisters are boarding the famouse Orient Express for a journey from Paris to Istanbul! The train is on a special trip to return a precious wedding dress stolen years ago...

Geronimo isn't the only world-famous adventuring journalist from New Mouse City; introducing his fabulous sister, Thea! The Thea Sisters are five fun, lively students at Ratford College on Whale Island, who want to be real, live journalists just like their hero, Thea Stilton. Between classes...

Join Thea Stilton and the Thea Sisters on an adventure packed with mystery and friendship! While Violet is taking an art class in the Netherlands, her friend's father mysteriously disappears! The missing mouse is a renowned botanist -- and his disappearance is linked to the rare black tulip. The Thea...

Thea Stilton sends Colette, Paulina, Violet, Pamela, and Nicky on a school project exploring in and around Whale Island in search of treasure. When a bad storm interrupts their scavenger hunt, separated, the Thea Sisters must rely on their individual knowledge and skills to make it through the storm and realize the true treasure is being themselves!

The Thea Sisters are five fun, lively students at Mouseford Academy on Whale Island, who want to be real, live journalists, just like their hero, Thea Stilton. Between classes, friendships, crushes, and some bizarre mysteries to solve, they find life to be a never-ending adventure! Colette,...

Join Thea Stilton and the Thea Sisters as they travel to help a new magical land! The mice encounter fairies and other strange and fantastical creatures as they work together to solve a mystery to save the realm from peril. It's a fabumouse adventure!

The Thea Sisters are five fun, lively students at Mouseford Academy on Whale Island, who want to be real, live journalists, just like their hero, Thea Stilton. Between classes, friendships, crushes, and some bizarre mysteries to solve, they find life to be a never-ending adventure!

During a hot-air balloon flight, the Thea Sisters discover that the turtles have vanished from Turtle Island! If that wasn't alarming enough, dangerous drums of a strange oil are spotted off the shore of the island-a disaster waiting to happen! The Thea Sisters are surprised that none other than Vissa...

The Thea Sisters and their friends have decided to start a school newspaper. But then Colette's diary goes missing, and sports reporter Nicky witnesses a suspicious finish during the Iron Mouse Games. Can the Thea Sisters solve these mysteries and make their deadline for their paper?

What is the secret of the clouds? The Thea Sisters have received an urgent message from their friend Will Mystery. The magical Land of Clouds is in danger. The mouselets must find out why the clouds are disappearing! Once they enter the kingdom through Mount Everest, the mice meet fairies, elves,...

Great news for the Mouseford Academy students! Top Direction, one of the most popular bands for teenagers, is going to perform on Whale Island! And they have decided that the opening act will be chosen among the best bands Mouseford Academy has to offer! Students have two weeks to write a song, and...

The Thea Sisters are learning cool survival techniques, but will that be enough to get them through a perilous night in the woods?

The Thea Sisters are just about to head off on their separate family vacations when they receive a call from Will Mystery. Once again, there is trouble in one of the imaginary kingdoms! A crack has been discovered in one of the maps in the Hall of Roses. The girls head to the Crystal Kingdom to help...