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The Mona Mousa Code is the tenth book in the original Italian Geronimo Stilton series and the fifteenth book in the English Geronimo Stilton series by Scholastic.

Plot[]

Do you like art? I do! So when Thea heard that there was a secret map hidden beneath Mouse Island's most famous painting, the Mona Mousa, I knew we had to get the scoop! Together we began to investigate, and soon we discovered secret clues that led us to the most fabumouse secret. And it all lay beneath the streets of New Mouse City!

Featured Characters[]

Trivia[]

  • "Mona Mousa" is obviously a pun on "Mona Lisa".
  • Trap is revealed to have many connections around Mouse Island, both good and bad.
  • Thea has a new boyfriend, Frick Tapioca.
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