Friends and pranking partners Miles and Niles face a tough challenge when their favorite goat and nemesis, Principal Barkin, is replaced by his stern, no-nonsense father, Former Principal Barkin, who turns the school into boot camp.

When George and Harold hypnotize their principal into thinking that he is the superhero Captain Underpants, he leads them to the lair of the nefarious Dr. Diaper, where they must defeat his evil robot henchmen.

A murderer could be around every corner in this thrilling YA trilogy based on the board game CLUE! When a storm strikes at Blackbrook Academy, an elite prep school nestled in the woods of Maine, a motley crew of students--including Beth "Peacock" Picach, Orchid McKee, Vaughn Green, Sam "Mustard" Maestor, Finn Plum, and Scarlet Mistry--are left stranded on campus with their headmaster. Hours later, his body is found in the conservatory and it's very...

When the teachers of Ella Mentry School go on strike, A. J. and the gang meet a new principal who does not believe in rules and says that the students do not have to learn anything if they do not want to.

While Raven is away, Luca breaks his promise to her and returns to the Wish Library, asking to be in charge at school, but being principal for a day is not all fun and games.

When Professor Pippy P. Poopypants comes to Jerome Horwitz Elementary School to teach science, and he goes off the deep end because students make fun of his name, Only Captain Underpants can save the school from the professor's perilous plot.

Mr. Keene loved being the principal of his fine, fine school. He was so proud of his students drawing and painting and reading and singing that he thought his buttons would burst! Then one day his appendix burst, and a new principal, Mr. Tatters, swooped in to take his place. Mr. Tatters said, 'In order to be a smart, smart school, we will have lots and lots of tests.' And suddenly there were no more cards and banners, posters and songs. Instead,...

Fourth graders George Beard and Harold Hutchins are a couple of class clowns. The only thing they enjoy more than playing practical jokes is creating their own comic books. And together they've created the greatest superhero in the history of their elementary school: Captain Underpants! His true identity is so secret, even he doesn't know who he is.

After being sent to jail for the rest of their lives, George and Harold are taken on a trip back in time by Tippy Tinkletrousers back to their Kindergarten days where they must deal with their bully without the help of Captain Underpants.