Captain Underpants and the preposterous plight of the Purple Potty People

Harold and George's time-traveling Purple Potty lands them in an alternate universe where everything seems delightful, but evil lurks just beneath the surface, and leads to a battle between Captain Underpants and his own evil twin.

Bibliographic Details
Main Author: Pilkey, Dav
Format: BOOK
Published: Scholastic Inc 2019
Series:Captain Underpants 8