Thea Stilton

"An adventure down under! Moldy mozzarella! A flock of sheep at Nicky's family's Australian ranch was losing all its wool, and no one knew why. Nicky and her friends the Thea Sisters headed to Australia and set off on a tour of the whole country in serch of clues. What happened next turned out to be a truly memorable outback adventure!" -- P. [4] of cover.

"When Paulina gets a phone call from home telling her that a friend is missing, the Thea Sisters travel to Peru to help solve the mystery. There, the five mice climb the Andes Mountains in search of a missing archaeologist. Along the way, they stumble upon clues leading them to a mysterious hidden city. Will the Thea Sisters find Paulina's friend, and the treasure of the Secret City?" -- P. [4] of cover.

Attending an art class in the Netherlands, Violet journeys through the flower gardens, windmills and canals of Holland to investigate the untimely disappearance of her friend's father, a renowned botanist whose absence is linked to a rare black tulip.

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 phantom before the show is ruined?

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.

While the Thea sisters are at the excavation site of a dig at Hierapolis, Professor Brenninger unearths a series of priceless and very old figurines, but the Thea Sisters think the discovery may be a scam and investigate.

A lion cub is kidnapped while the Thea Sisters visit a Kenyan safari, and they must travel across the savanna to rescue him.

"An ancient treasure is in danger! The Thea Sisters have been invited to Egypt to participate in a fabumouse archeological excavation. They are helping to look for the legendary ancient Treasure of the Sun! A precious blue stone scarab may be the key to their search, and they work enthusiastically to uncover the past. But they also discover that thieves are after the hidden treasure. It's up to the Thea Sisters to stop them!"--P. [4] of cover.

After meeting the head of the performing arts department, Professor Ratyshnikov, the Thea Sisters investigate why the famous ballerina no longer gets along with Headmaster de Mousus.

"There's going to be a musical at Mouseford, and the students can't stop squeaking about it. Everyone wants a role, but the auditions won't be easy. Plus, sneaky Ruby Flashyfur has some tricks up her sleeve. Will the Thea Sisters come out on top--or will they be singing a different tune when the auditions are over?"--Back cover.