Enter the world of Geronimo Stilton, where another funny adventure is always right around the corner. Each book is a fast-paced adventure with lively art and a unique format kids 7-10 will love. Geronimo Stilton, adventuremouse? Not me! But surely a little skiing couldn’t hurt a rodent, right? Wrong. Moldy mozzarella! When my ski trip landed me in the hospital, I was sure it was going to be the worst Christmas ever! But my family and friends had something else in mind.