Geraldine, the music mouse

So far, my least favorite book by Leo Lionni. It is the story of a mouse who discovers a giant piece of Parmesan, and after sharing parts of it with his friend, realize that inside of it there is a mouse-shaped cheese sculpture that makes music. One day, his starving friends come back and demand to be feed... What happen next is a big metaphor that seem hard for a kid to grasp. I am perplexed...