The fourth book in Dav Pilkey's mega-bestselling Captain Underpants series. Now with super-cool foil covers! Shiny! Fun! George and Harold aren't bad kids. They just like to "liven things up" for everybody. Unfortunately, their thoughtful jokes sometimes get them into a LOT of trouble. And when Professor Pippy P. Poopypants becomes their new science teacher...well, George and Harold almost c…
When we last saw our heroes George and Harold, they were under arrest and headed for prison. Then Harold foolishly uttered the fateful words, 'What could be worse than going to jail for the rest of our lives?' and changed the course of human history. In this ninth epic novel, Dav Pilkey takes readers back in time to the carefree days of kindergarten, when the worst thing George and Har…