The Naughtiest Girl, 10 Books RRP £49.99 (Naughtiest Girl in the School, Naughtiest Girl Again, Is a Monitor, Here's the Naughtiest Girl, Keeps a Secret, Helps a Friend, Saves the Day, Well Done the Naughtiest Girl, Wants to Win, Marches On) Paperback – 1 Jan. 2014