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
Geronimo's adventurous sister Thea narrates this tale packed with action, mystery, and friendship!In this fabumouse adventure, the Thea Sisters head to Alaska, where they're attending a conference hel
The Thea Sisters participate on a dig at Hierapolis. During their visit to the excavation site, Professor Brenninger unearths a series of priceless and very old figurines. But the Thea Sisters soon fi
Thea Stilton is out of this world!A professor at Mouseford Academy is organizing a trip to outer space, and the Thea Sisters are invited. The mouselings are headed on a fabumouse mission... to the moo
The Thea Sisters are taking a trip to Canada! They have been invited to do some bird-watching with a group of friends. The girls are enjoying learning more about Canada and their love for hockey. But
Geronimo's adventurous sister Thea is taking the publishing world by storm in this fabumouse tale packed with action, mystery, and friendship.In this exciting adventure, the Thea Sisters are off to Ja
The Thea Sisters are visiting a friend in sunny California -- and she invites them to the set of a movie in Hollywood! The mice love being around famouse and fabumouse directors and actors as they're
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 ar
Geronimo's adventurous sister Thea narrates this fabulous adventure that's packed with action, mystery, and friendship!In this exciting adventure, the Thea Sisters are off to Paris to visit Colette's
When Geronimo's sister, Thea, is invited to teach a journalism class at a college on Mouse Island, she has no idea that she's going to be called on to help solve a mystery. But when a student disappea
A magical world is in danger! The Thea Sisters are on their way. . . .Thea Stilton and the Thea Sisters are on an expedition to the fantastical Land of Erin. While they are searching for a missing fri
In this amazing adventure, Thea's friends the Thea Sisters head to Peru, where a good friend of Paulina's is in danger. There, the five mice climb the Andes mountains in search of a mysterious treasur
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 sh
Thea's friends the Thea Sisters take off for Australia to solve a mystery. A flock of sheep at Nicky's family's ranch is losing all its wool, and the ranch depends on the wool to stay afloat! Maybe th
An all-new hardcover adventure featuring Thea Stilton and the Thea Sisters!At the beach by Mouseford Academy, one of the Thea Sisters discovers a mysterious boy with blue skin washed up on the shore.
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
Three books in one fabumouse boxed set!Geronimo isn’t the only world-famouse adventuring journalist from New Mouse City; introducing his fabulous sister, Thea! The Thea Sisters are five fun, lively st
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, a
The students of Mouseford Academy are participating in an enormouse science fair! Mice from schools around the world are all hoping to take the top prize. The Thea Sisters would love to win, but so wo
