TY - BOOK N2 - 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-travelling 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? AB - 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-travelling 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? T1 - Captain Underpants and the revolting revenge of the radioactive robo-boxers / AU - Pilkey, Dav, VL - 10 CN - PZ7.P63123 CN - PZ7.P63123 N1 - Originally published: 2013. ID - 770729 KW - Captain Underpants (Fictitious character) KW - Superheroes KW - Time travel KW - Humorous stories. KW - Captain Underpants (Fictitious character) SN - 9780545724234 SN - 9781407134680 SN - 140713468X TI - Captain Underpants and the revolting revenge of the radioactive robo-boxers / ER -