The book of Captain Underpants is cool and funny. The boys hypnotize the principal to be Captain Underpants and then he runs away from the boys. The comic that the boys make is so funny. I like the part when the boys buy the ring to hypnotize the principal so they don’t have to do what the principal tells them to do. When Captain Underpants runs away, the boys get a skateboard to go look for Captain Underpants. Then they fight with robots because they where intruders. George saves Harold and Harold returns the favor.