The Naughtiest Unicorn 8 Books Collection Box Set includes: 1. The Naughtiest Unicorn; 2. The Naughtiest Unicorn at Sports Day; 3. The Naughtiest Unicorn and the School Disco; 4. The Naughtiest Unicorn at Christmas; 5. The Naughtiest Unicorn on a School Trip; 6. The Naughtiest Unicorn on the Beach; 7. The Naughtiest Unicorn and the Spooky Surprise; 8. The Naughtiest Unicorn on Holiday