Captain Underpants #4

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Professor Pippy P. (Pee-Pee) Poopypants is a brilliant scientist, but his ridiculous name means no one takes his fantastic inventions seriously. And now he's on the rampage! He's a rmed with fiendish inventions Shrinky-Pig 2000 and the terrible Gerbil Jogger 2000. Can Captain Underpants stop him? Show more