Meet Geronimo Stiltonix He is a spacemouse -- the Geronimo Stilton of a parallel universe! He is captain of the spaceship "MouseStar 1." While flying through the cosmos, he visits distant planets and meets crazy aliens. His adventures are out of this world! "Beware! Space Junk!" "MouseStar 1" is surrounded by floating space junk! It s yucky -- and dangerous. It s coming from a nearby planet, Cleanix. Geronimo Stiltonix goes to visit, and discovers that the aliens there are very wasteful. Even worse, robots that they ve thrown in the trash have started to rebel! Can the spacemice restore harmony before the robots take over?"