Captain Underpants and the perilous plot of Professor Poopypants : the fourth epic novel / Dav Pilkey.

George and Harold -- All Hail New Swissland -- The Field Trip -- Left Behind -- The Fun Begins -- Bye Bye, Mr. Fyde -- Here, Oh Here -- The Sweetness and Innocence of Children -- The Gerbil Jogger 2000 -- Just One More Thing -- Captain Underpants and the Pied Pooper of Piqua -- Professor P. Goes Cra-Z -- Honey, I Shrunk the School -- The Perilous Plot -- The Name Change-O-Chart 2000 -- Fluffy and Cheeseball -- Captain Underpants to the Rescue -- Are You There, God? It's Us, Fluffy and Cheeseball -- The Flight of the Goofy Glider -- X-tra, X-tra, X-tra, X-tra, X-tra, X-tra, X-tra, X-tra, X-tra Large Underpants -- The Incredibly Graphic Violence Chapter (in Flip-O-Rama) -- The Twenty-Second Chapter -- To Make a Long Story Short -- The Chapter Before the Last Chapter -- The Chapter After the Chapter Before the Last Chapter.