"Captain Underpants is an illustrated children's novel series by American author and illustrator Dav Pilkey. The series revolves around two fourth-graders, George Beard and Harold Hutchins, living in Piqua, Ohio, and Captain Underpants, an aptly named superhero from one of the boys' homemade comic books, who accidentally ("kinda on purpose") becomes real when George and Harold hypnotize their cruel, bossy, and ill-tempered principal, Mr. Krupp. Soon after, Mr. Krupp gains superpowers by drinking alien juices in the third book."
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