u003cbu003eGeorge and Harold's nemesis Melvin Sneedly goes from snooty to snotty in the sixth book in this #1 u003ciu003eNew York Timesu003c/iu003e bestselling series by Dav Pilkey, the author and illustrator of Dog Man!u003c/bu003eu003cbru003eu003c/bru003eGeorge and Harold are up to their old tricks again, and when their latest prank makes a direct hit on school brainiac Melvin, he decides to get even! But in the blink of an eye -- and the sneeze of a nose -- the Bionic Booger Boy is born! Can Captain Underpants clean up this catastrophe, or will the mucous monster make a mess of things?
