A mysterious rodent has been shipwrecked on Mouse Island. He's a prehistoric pirate, and he's searching for a lost Stone Age treasure Geronimo Stiltonoot and his family volunteer to help him on his dangerous hunt. Petrified cheese Can they find the treasure without going extinct on the way?

Geronimo Stilton is the publisher of The Rodent’s Gazette, Mouse Island’s most famouse newspaper. In his spare time, Mr. Stilton enjoys collecting antique cheese rinds, playing golf, and telling stories to his nephew Benjamin. He lives in New Mouse City, Mouse Island. Visit Geronimo online at www.scholastic.com/geronimostilton.