A funny girl named Judy Moody invites you to her world. There are days when you are not in the mood and everything seems Gray. I'm not happy with anything, especially the school. One day, when Judy comes to school, she notices that a skeleton is sitting at the teacher's desk. This surprise was organized for her class, so that the children would study the structure of the body. Students will visit an ambulance, Judy will treat her brother and even operate on what she says is the perfect patient. Who will it be? Learn from this fascinating book.