Geronimo Stilton : Spacemice - Rescue Rebellion (#5)

Geronimo Stiltonix and his crew head to the planet Jurassix to warn its inhabitants of a giant comet heading straight toward them! But the creatures there turn out to be ferocious, dinosaur-like beasts... who like to eat rodents. Squeak! Can the spacemice save these aliens and still make it out alive?