Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy, Part 1: The Night of the Nasty Nostril Nuggets (Captain Underpants #6)
George and Harold are in a sticky situation. Their latest prank has snotty school brainiac Melvin Sneedly seeing red, and he can't wait to get them back. But when Melvin tries to transform himself into a bionic-powered superboy, things get a little gloppy - and the Bionic Booger Boy is born! Can Captain Underpants beat this blobby behemoth of blech, or is the entire world doomed to drown in disgusting nose-drible? Pass the tissues, please!