Captain Underpants and the Revolting Revenge of the Radioactive Robo-Boxers

When we last saw our heroes, George and Harold, they had been turned into evil zombie nerds doomed to roam a devastated, post-apocalyptic planet for all eternity. But why, you might ask, didn't the amazing Captain Underpants save the boys from this frightening fate? Because Tippy Tinkletrousers and his time-traveling hijinks prevented George and Harold from creating Captain Underpants in the first place! Now, having changed the course of human history forever, they'll have to figure out a way to CHANGE IT BACK.
Could this be the end for Captain Underpants?!!

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.