Geronimo's adventurous sister Thea takes center stage in this super special that's packed with mystery, adventure, and friendship!When Geronimo's sister, Thea, is invited to teach a journalism class at a college on Mouse Island, she has no idea that she's going to be called on to help solve a mystery. But when a student disappears, it's up to Thea and five of her students to find out what happened. A nail-biting mystery ensues, complete with secret passages, underground tunnels, and more than a few surprises along the way. Readers will love following the clues to help Thea and her new friends through their first adventure together! Thea Stilton is a special correspondent for The Rodent's Gazette, Mouse Island's most famouse newspaper. A graduate of Mouseford Academy, Ms. Stilton loves traveling and adventures. Find out more at www.scholastic.com/geronimostilton

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