Dav Pilkey's newest epic novel finds George, Harold, and everyone's favourite superhero in the stickiest situation yet. This time, the boys' latest prank has snotty school brainiac Melvin Sneedley in a stink. And when Melvin tries to transform himself into a bionic-powered superboy, things go from bad to boogers - literally - and the Bionic Booger Boy is born! With fun Flip-O-Rama and loads of laffs, here's another excellent adventure that will leave Captain Underpants fans begging for more. Special bonus cliffhanger ending included! This book is so full of action, adventure, laffs, danger, romance (just kidding!) and Flip-O-Rama, that we couldn't fit it into just one book! Look out for 'Captain Underpants And The Big Bad Battle Of The Bionic Booger Boy Part 2: Revenge Of The Robo-Boogers'.