Download or read book Captain Underpants and the Revolting Revenge of the Radioactive Robo-Boxers written by Dav Pilkey and published by Scholastic UK. This book was released on 2014-01-24 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: When we last saw George and Harold, they had been turned into evil zombie nerds. But why didn't Captain Underpants save them from this fate? Because Tippy Tinkletrousers and his time-travelling hijinks prevented George and Harold from creating Captain Underpants in the first place! Could this be the end for Captain Underpants?!!