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.
About the Author
Dav Pilkey has written and illustrated numerous popular, award-winning books for children, including the Captain Underpants and Dumb Bunnies series; Dog Breath, winner of the California Young Reader Medal; and The Paperboy, a Caldecott Honor Book. He lives with his wife in the Pacific Northwest. Visit him online at www.pilkey.com.