Captain Underpants and the revolting revenge of the radioactive robo-boxers

Description:

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. Tippy Tinkletrousers and this 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.

subjects: Humorous stories,  Juvenile fiction,  Revenge,  Fiction,  Captain Underpants (Fictitious character),  Time travel,  Heroes,  Superheroes,  School principals,  Bobette, Capitaine (Personnage fictif),  Romans, nouvelles, etc. pour la jeunesse,  Superhéros,  Voyages dans le temps,  Action & Adventure,  Social Themes,  Friendship,  Heroes and heroines,  Humorous fiction,  Children's fiction,  Captain underpants (fictitious character), fiction,  Time travel, fiction,  Heroes, fiction,  Ficción juvenil,  Viaje a través del tiempo,  Spanish language materials,  Schools,  Juvenile literature