A special small-format mini adventure with Luna, exclusive for World Book Day 2021, from the creators of Luna Loves Library Day and Luna Loves Art.Today is World Book Day and Luna can't wait. She has the whole day planned... Dress up as her favourite book character: a unicorn! Meet an author and an illustrator. Buy a new book with her book token. But - disaster! - Luna the Unicorn's costume has ripped! Can Dad come to the rescue with a potato and a little bit of book magic?Also in this series:Luna Loves Library DayLuna Loves ArtLuna Loves Dance (new for September 2021)