Horrid Henry Mischievous Mayhem 10 Books Box Set Titles in the Set Horrid Henry and the Bogey Babysitter, Horrid Henry Stinkbomb, Horrid Henry Underpants, Horrid Henry Meet the Queen, Horrid Henry and the Mega-mean Time Machine, Horrid Henry and the Football Fiend, Horrid Henry Christmas Crakers, Horrid Henry and the Abominable Snowman, Horrid Henry Jolly Joke Book, Horrid Henry Strikes Back