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.
760L Lexile|||juvenile
the eighth epic novel by Dav Pilkey ; with color by Jose Garibaldi and Corey Barba.
"Full color."
Accelerated Reader AR MG 4.7 1 108880.
