Thea Stilton and the Secret City

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!

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• Thea Stilton and the Cherry Blossom Adventure: A Geronimo Stilton Adventure
• Thea Stilton: Big Trouble in the Big Apple: A Geronimo Stilton Adventure (Thea Stilton #8): A Geronimo Stilton Adventure (8)
• Thea Stilton and the Ice Treasure: A Geronimo Stilton Adventure
• Thea Stilton and the Star Castaways: A Geronimo Stilton Adventure
• Thea Stilton and the Venice Masquerade: A Geronimo Stilton Adventure (Thea Stilton #26)
• Thea Stilton and the Dancing Shadows: A Geronimo Stilton Adventure