"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.

The Thea sisters are off to Madagscar to a wilderness survival competition. They soon learn that they are not alone in the nature preserve and endangered animals are under threat.

It is up to the Thea sisters to investigate when their friend is falsely accused of theft and barred from competing in a figure skating championship in Russia.

While attending the Festival of Time in Germany, the Thea sisters investigate the theft of a famous clock.

" While on vacation in Greece, the Thea Sisters make friends with a company of actors who are rehearsing for a play that's about to open. When an actress sprains her ankle, Colette ends up standing in for her! But suddenly, right before the performance, the lead actor goes missing. Can the mouselets find him in time for the show to go on?" --

Young readers can join Thea Stilton, a special correspondent for The Rodent's Gazette, as she and the Thea Sisters spend the holidays in Rome.

"The Thea Sisters travel to New York to cheer for Nicky as she runs the Big Apple Marathon. While there, they visit Pamela's family and have a delicious dinner at the family's pizzeria. But when someone threatens to burn the restaurant down, can the Thea Sisters catch the troublemaker and solve the mystery?"--P. [4] of cover.

The Thea Sisters are visiting friends in Spain when a mysterious theft turns their trip into an investigation! They end up hot on the trail of a secret treasure. The mouselets are in for an incredible adventure full of flamenco dance!

The Thea Sisters help their friend Beatrice prepare for the Summer Olympics!