While sitting in detention, George and Harold accidentally create an army of evil talking toilets, and Principal Krupp's alter ego, Captain Underpants, has to save the world from it.
Crackers and Sulu, the Bionic Hamster, finds themselves in a backwards universe where George and Harold's own evil twins rule the school with the help of the wicked Captain Blunderpants.
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.
While sitting in detention, George and Harold accidentally create an army of evil talking toilets, and Principal Krupp's alter ego, Captain Underpants, has to save the world from it.
the revenge of the ridiculous Robo-Boogers : the seventh epic novel
Pilkey, Dav
2003
Captain Underpants and his friends, having dispatched Melvin Sneedley, the Bionic Booger Boy, must join the fray again when they realize they have forgotten about Sneedley's sidekicks, the Robo-Boogers.
Identifies nine characteristics of outstanding school leaders and explains how principals can develop those characteristics and become more effective community and school leaders.
Frannie's wildest dreams come true when she is named principal for the day, but she soon realizes running the school comes with a lot of responsibilities.
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.
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.