Geronimo Stilton's ancient ancestor is back in another prehistoric adventure! 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?

For use in schools and libraries only. Geronimo Stilton's ancient ancestor is back in another prehistoric adventure! 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?

When a pirate gets shipwrecked on Mouse Island, Geronimo Stiltonoot and his family offer to help the stranger look for a hidden treasure.

Spacemouse Geronimo Stiltonix's adventures are out of this world! Each year on the Night of Dancing Stars, the elfix aliens distribute gifts to all the creatures of the galaxy. But this year, the holiday is fast approaching, and the spacemice discover that the elfix have all disappeared! Can Geronimo Stiltonix and his crew find them before their special night?

"Old Mouse City is in an uproar. The most precious artifact in the mouseum -- the Stone of Fire -- has been stolen! Geronimo Stiltonoot and his cavemouse friend Hercule Poirat are on the case. It's up to them to retrieve the stone from the ferocious Tiger Khan and his band of fearsome felines!"--Page 4 of cover.

In this fun spin-off to the bestselling middle grade adventure series, the prehistoric ancestor to Geronimo Stilton investigates a Stone Age mystery. Geronimo Stilton’s ancient ancestor Geronimo Stiltonoot is back in another prehistoric adventure! A visiting rodent has arrived in Old Mouse City with astounding news. On his recent journey to a cold, distant land, he spotted a mountain . . . moving! Holey cheese! Geronimo Stiltonoot sets off on a trip to the ice and snow to find out what lies behind this mystery. It’s a fur-raising expedition! Praise for the Geronimo Stilton’s Cavemice series: “Fans of the other Geronimo Stilton books will definitely embrace the over-the-top silliness in this new spin-off.” —Booklist Praise for Geronimo Stilton’s books: “Lightning pace and full-color design will hook kids in a flash.” —Publishers Weekly

Geronimo Stilton meets outer space in this cosmically fun spin-off series! The spacemice have received an invitation to participate in the intergalactic soccerix championship. It's a tournament for the most popular sport in space! But Geronimo doesn't even know how to play soccerix, let alone lead a team to victory against aliens with bizarre skills (like flying)! Can the spacemice team prevail?