The Underwater Planet (Geronimo Stilton Spacemice #6)
By Geronimo Stilton.
Description
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? - from Amzon
ISBN(s)
054587243x, 9351038238, 9780545872430, 9789351038238