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Captain Underpants and the Perilous Plot of Professor Poopypants - Paperback
Professor Pippy P. Poopypants may be the greatest scientific genius the world has ever known. Unfortunately, he has such a silly name that nobody takes him seriously! Needless to say, George and Harold poo-poo Poopypants' pride - practically pulverizing it - and Poopypants is preparing to pounce! This looks like a job for Captain Underpants...