Spacemouse Geronimo Stiltonix's adventures are out of this world! MouseStar 1 is surrounded by floating space junk! It's yucky -- and dangerous. Geronimo Stilto

Traveling to Cleanix to investigate why floating space junk has engulfed MouseStar 1, Geronimo finds that the planet's alien inhabitants are extremely wasteful

Geronimo Stilton meets outer space in this cosmically fun spin-off series! Meet Geronimo Stiltonix:He is a spacemouse -- the Geronimo Stilton of a parallel univ

Geronimo discovers a planet on the radar that mysteriously appears and disappears. MouseStar 1 lands to investigate and they discover mysterious aliens who hide

Spacemouse Geronimo Stiltonix's adventures are out of this world! While at the beach, Geronimo Stiltonix stumbles upon a mysterious treasure map! The spacemice