Good Condition - cover creasing with edge and corner wear and page-edge tanning.
When a student at Mouseford Academy disappears, the Thea Sisters begin searching for clues. Their investigation leads to a mysterious dragon code, hidden secrets and a puzzle that will require all their courage and teamwork to solve. Set on Whale Island, this lively adventure combines friendship, school life and suspense with colourful illustrations and playful design, making it an inviting read for fans of mysteries and the world of Geronimo Stilton.
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