The Underwater Planet (Geronimo Stilton Spacemice #6)

About this book

While at the beach, Geronimo Stiltonix stumbles upon a mysterious treasure map! The spacemice follow it and end up on Aquarix, a planet that's entirely underwater. During their exploration, they face fur-eating seaweed, ferocious piranha aliens, and . . . pirate spacecats! Squeak! Can the spacemice keep the spacecats from stealing the treasure?

Reviews

Praise for Geronimo Stilton Spacemice #1: Alien Escape:
"A wonderful science-fiction introduction for young readers." -- Kirkus Reviews

Praise for Geronimo Stilton books:
"Lightning pace and full-color design will hook kids in a flash." -- Publishers Weekly