Geronimo's sister Thea Stilton narrates this action-packed adventure!The Thea Sisters have been invited to Egypt to participate in a fabu-mouse 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!

When the Thea Sisters visit Egypt to help look for the legendary ancient Treasure of the Sun, they discover that thieves are also after the hidden treasure, and it's up to the sisters to stop them.

The Thea Sisters have been invited to Egypt to participate in an 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, but they also discover tha

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 friend, they learn that the land itself is in peril! The mouselets are ready to help.On their journey, they encounter fairies, pixies, and other magical creatures -- some helpful, but some out to trick them! Can the Thea Sisters save the Land of Erin before it's too late? It's an adventure full of mystery and friendship!

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 held by an important ecological association. Their host and his family are native Alaskans who show the mouselings their favorite games and activities. But soon there's trouble--the Thea Sisters discover that someone is upsetting the ecosystem by blowing up the ice with explosives! Can the Thea Sisters figure out what's going on and stop the destruction before it's too late?

Join Thea Stilton and the Thea Sisters on this adventure packed with mystery and friendship! The Thea Sisters are in Kenya on a photo safari! The mouselets love exploring the magnificent landscape and learning about the animals on the reserve they're visiting. A lion cub has just been born -- but while they're there, he's kidnapped! It's up to the Thea Sisters to rescue him in an adventure across the savanna.

Join Thea Stilton and the Thea Sisters on an adventure packed with mystery and friendship! The Thea Sisters are heading to Malaysia. Their friends, Latifah and Ramlee, are writing a travel guide and have asked the sisters to help them research. They are stopping at all the best sites, eating all the best foods, and seeing the most amazing animals, especially in the rainforest. While they are exploring they learn about a plan to cut down the trees in the forest and Ramlee and their guide go missing! Can the sisters track down their friend and save the forest?