The Adventures of Super Diaper Baby (Color Edition: #1), by Dav PIlkey

From the creator of Dog Man and Cat Kid Comic Club comes Super Diaper Baby―a superhero who’s faster than a speeding stroller and more powerful than diaper rash, now in full colour! George and Harold are in trouble again! As punishment, they have to write a 100-page report on ‘good citizenship’, and they have been specifically ordered NOT to make another comic about Captain Underpants. So what do they do? They create an all-new superhero ... Super Diaper Baby! Super Diaper Baby’s archenemy, Deputy Dangerous, wants to steal his powers and take over the planet. Will the diaper-wearing dynamo defeat the deputy, or is the entire planet doomed?