Geronimo Stilton Cavemice #8: Surfing for Secrets

Head back in time with Geronimo Stilton’s ancient ancestor. Prehistoric pirate treasure! Who says old is boring? Being a cavemouse totally rocks! A mysterious rodent has been shipwrecked on Mouse Island. He’s a friendly pirate, looking for lost Stone Age treasure. So Geronimo Stiltonoot and his family volunteer to join the hunt. But danger is everywhere. Fossilized cheese! Will this quest be the end of them all?