Geronimo Stilton: Spacemice #12: The Invisible Planet

Suitable for:

Age Level: 7 - 12

Lexile Measure: 640L

Spacemouse Geronimo Stiltonix's adventures are out of this world! Geronimo discovers a planet on the radar that mysteriously appears and disappears. MouseStar 1 lands to investigate and they discover mysterious aliens who hide a secret!