Horrid Henry Costume - (Child)Na na na na na! It's Horrid Henry the misbehaving prankster from the book series by Francessca Simon Illustrated by Tony Ross, his favourite ways to solve problems is by pranking! When compared to his brother, Perfect Peter, he couldn't be any more different but we all know that beneath his mischievous exterior is a boy who loves his family and friends. The character of Horrid Henry is brought to life in this costume, featuring his signature blue