Captain Underpants and the Sensational Saga of Sir Stinks-A-Lot: The Twelfth Epic Novel by Dav Pilkey

Exclusive Indigo edition includes a glow-in-the-dark poster! There's something rotten in the state of Ohio. 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 ̢‰â?۝ 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