Geronimo Stilton. Thea Stilton

Geronimo's adventurous sister Thea narrates this fabulous adventure that's packed with action, mystery, and friendship!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 the sheep's cure lies in an Aboriginal medicine containing a strange root. The five mouselings set off on a tour of the whole country...

Geronimo's adventurous sister Thea narrates this fabulous adventure that's packed with action, mystery, and friendship!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 treasure that's hidden in the Secret City of the Incas. Readers will love following the clues to help the Thea Sisters solve the mystery!

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 Japan on a cultural exchange program. While they're busy exploring Kyoto and admiring the beautiful cherry blossoms, a valuable doll is stolen from a wealthy Japanese collector. Will the five mice be able to track down the doll and catch the thief? Readers...

Geronimo's sister Thea Stilton narrates this action-packed adventure!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 help find her! Along the way, the Thea Sisters encounter Celtic legends, cryptic messages, and hidden treasures on a trip that's full of surprises!

Geronimo's sister Thea Stilton narrates this tale packed with action, mystery, and friendship!When the Thea Sisters' friend Ashvin is in trouble, they rush to his aid . . . in India! Ashvin has been bringing the monkeys that live in the big city back to their natural jungle environment. But the monkeys have suddenly started stealing jewels! Someone must be behind this terrible theft. Can the Thea Sisters solve the mystery?

Geronimo's sister Thea narrates this adventure packed with mystery and friendship!

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 rigthe prestigious contest, and the future of the mouselets' new friend — an aspiring ballerina — is at stake! Can the Thea Sisters stop this scheme before it's too late?

Join Thea Stilton and the Thea Sisters on this adventure packed with mystery and friendship!

The Thea Sisters are visiting friends at a lively festival in Spain. But the theft of a precious fan turns their trip into an investigation! They end up hot on the trail of a secret treasure . . . but they're not the only ones searching for it. Can the mouselets solve the mystery in time? It's a mission full of flamenco dance!

Join Thea Stilton and the Thea Sisters on an adventure packed with mystery and friendship!

While on vacation in Greece, the Thea Sisters make friends with a company of actors. They are rehearsing for a show that's about to open — and Colette ends up standing in for an actress who falls ill! Suddenly, right before the performance, the lead actor goes missing. Can the mouselets find him in time for the show to go on?

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. They 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 catch and unmask him before the festival ends?

Amy and Dan are in a race for their lives . . . and the enemy may be even closer than they think.

When seven members of their family were kidnapped by a sinister organization known as the Vespers, thirteen-year-old Dan Cahill and his older sister, Amy, vowed they'd stop at nothing to bring the hostages home. But then the ransom comes in and the Vespers demand the impossible. Amy and Dan have just days to track down and steal an ancient map....

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

Join Thea Stilton and the Thea Sisters on an adventure packed with mystery and friendship!

The Thea Sisters are going to New Zealand! Their new friend Charlotte wants to show them the sights, and introduce them to Didi, a skeleton of a bird that went extinct many years ago. But when they get to the mouseum, Didi has gone missing! Can they find the stolen skeleton before it is too late?