Geronimo Stilton Heromice Insect Invasion # 9 | Book Paperback

Mighty mozzarella! A swarm of hungry insects is chewing up everything in Muskrat City. Even Superstilton’s and Swiftpaw’s capes have more holes in them than two slices of Swiss!

Can the Heromice figure out who’s behind the insect invasion? And can these bad bugs be stopped before they take over the city?