Spacemouse Geronimo Stiltonix's adventures are out of this world! Geronimo Stiltonix and the spacemice are visiting a planet where the most delicious wild mozzarella grows. Yum! But the planet is plagued by the slurp monster -- a scary alien who wants all the mozzarella for himself! Can the spacemice restore harmony on this cheesy planet without getting slurped up themselves?