Synopsis: Geronimo Stilton and his sister Thea search for a secret map hidden beneath a famous painting and soon uncover some amazing clues.

Synopsis: Who is Geronimo Stilton? That's me! I run a newspaper, but my true passion is writing tales of adventure. Here in New Mouse City, the capital of Mouse Island, my books are all bestsellers! My stories are full of fun - tastier than Swiss cheese and tangier than extra-sharp cheddar. They are whisker-licking-good stories, and that's a promise! My grandfather, William Shortpaws, was back at 'The Rodent's Gazette', and he was determined to drive me…