The Adventures Of Captain Underpants is a children’s novel that revolves around a superhero.The book’s two main characters, George Beard and Harold Hutchins, are 4th graders of Jerome Horowitz Elementary School. These two boys have created a comic which features a superhero by the name of, The Amazing Captain Underpants. One day, these two kids play a prank on the football team. Their child-hating principal, Mr Krupp, finds out, and he threatens to reveal this information to the footballers, unless George and Harold become his servants. In The Adventures Of Captain Underpants, the boys end up washing Mr Krupp’s car, doing extra homework, cleaning his office, and more. One day, the two protagonists buy a 3-D hypno-ring, and then hypnotise Mr Krupp into becoming Captain Underpants. The principal changes into his underwear, and ties a cape around his neck. Much to the boys dismay, the principal is convinced that he really is a superhero. Mr Krupp starts to fight crime.

[Source: Scholastic ]