Captain Underpants 11: and the Tyrannical Retaliation of the Turbo Toilet 2000 by Dav Pilkey

CAPTAIN UNDERPANTS returns for an eleventh adventure in this highly illustrated comic book style series. Just when you thought it was safe to flush... When the Incredible Robo-Plunger defeated the evil Turbo Toilet 2000, George and Harold thought their toilet troubles were over. Unfortunately, their porcelain problems were only beginning... The Turbo Toilet 2000 is back! The carnivorous commode known for devouring everything in its path has built up a real appetite ... for REVENGE! Join Captain Underpants for another epic showdown of Wedgie Power vs. Potty Power.