Children's Mystery Books are the "kids" version of our popular Blind Date with a Book! Kids can unwrap a surprise book too. Fun, brand new books expertly wrapped and adorned with stickers and items that your littles will love, a mini game, a fun drink mix, crayons and more! Make bedtime even more fun! Description of the mystery book on the back. Age ranges 3-6 or 7-12 fiction, they can be enjoyed by both boys and girls. 80% of our books are brand new. Occasionally we use almost-new classics (because it's good for the planet!)