Captain Underpants #8: Captain Underpants And The Preposterous Plight Of The Purple Potty People

Everything goes VERY wrong when George and Harold fall into a parallel universe – and it gets even wronger when they run into their very own evil twins. Now the boys must face their most cunning enemies yet… themselves! And with Captain Underpants facing his own nemesis, the dastardly Captain Blunderpants, will good or evil reign supreme? Another hilarious epic starring our wedgie-powered hero!