Spark your child's reading interest with the sixth book in the best-selling series starring two imaginative 4th graders who battle evil with the help of a wedgie-powered superhero. In this installment, the boys' latest prank has snotty school brainiac Melvin Sneedly boiling mad, but when Melvin tries to retaliate by transforming himself into a bionic-powered superboy, things go from bad to boogers -- literally! Will the world be doomed to drown in disgusting nose-dribble?