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Book #12: Captain Underpants and the Sensational Saga of Sir Stinks-A-Lot

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There's something rotten in the state of Ohio, and it's smellier than a pile of putrid gym socks! Steer clear—it's Sir Stinks-A-Lot!

George and Harold, and their doubles, Yesterday George and Yesterday Harold, have a good thing going. Two of them go to school, while the other two hide in the tree house and play video games all day—then they switch! But when their malicious gym teacher, Mr. Meaner, creates a method of mind control that turns their fellow students into attentive, obedient, perfect children, the future of all humanity will be in their hands!