The invisible planet /
Geronimo Stilton ; illustrations by Giuseppe Facciotto (pencils), Carolina Livio (inks), and Serena Gianoli and Paolo Vicenzi (color) ; translated by Julia Heim.
- 113 pages : color illustrations ; 20 cm.
- Spacemice ; 12. .
- Stilton, Geronimo Spacemice ; 12. .
"Turtleback Books bound for schools and libraries" --cover. Rebound item issued with a new ISBN. Catalogued from verso.
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!