Title: L'invasione dei dispettosi Ponf Ponf
Description: Friends of the spacemice have disappeared on a strange ice planet, Polarix! Geronimo Stiltonix and his crew are called to search for them. When the spacemice arrive on Polarix, they're surprised at the inhabitants -- cute little aliens that look like colorful fuzz balls! But are these creatures as harmless as they look?

Friends of the spacemice have disappeared on Polarix, a strange ice planet, and Geronimo Stiltonix and his crew are called to search for them. Book #3
Subjects: Extraterrestrial beings, Juvenile fiction, Exploration, Mice, Planets, Children's fiction, Adventure and adventurers, fiction, Outer space, fiction, Mice, fiction, Seres extraterrestres, Viajes interplanetarios, Aliens, Interplanetary voyages, Fiction, Spanish language materials, Ficción juvenil
Places: Outer space
People: Gerónimo (Personaje literario) Stilton, Geronimo Stilton