New Mouse City was in a panic! A strange epidemic had broken out. Mice everywhere — including me, Geronimo Stilton — were covered in weird blue pimples! I immediately called upon Mouse Island’s most famouse doctor and researcher for help. He set to work with his team to find the cure . . . but someone was trying to stop him. Moldy mozzarella, I didn’t want to be blue forever!
- Publisher : Turtleback Books; Reprint edition (28 June 2016)
- Language : English
- Library Binding : 103 pages