Narnia. Varying combinations of some or all of them appear in five of the seven novels. They are introduced in The Lion, the Witch and the Wardrobe (although their surname is not revealed until The Voyage of the Dawn Treader), and eventually become Kings and Queens of Narnia reigning as a tetrarchy. Although introduced in the series as children, the siblings grow up into adults while reigning in Narnia. They go back to being children once they get back to their own world, but feature as adults in The Horse and His Boy during their Narnian reign. All four appear in The Lion, the Witch, and the Wardrobe and Prince Caspian; in the latter, however, Aslan tells Peter and Susan that they will not return, as they are getting too old. Susan, Lucy, and Edmund appear in The Horse and His Boy—Peter is said to be away fighting giants on the other side of Narnia. Lucy and Edmund appear in The Voyage of the Dawn Treader, where Aslan tells them, too, that they are getting too old. Peter, Edmund, and Lucy appear as Kings and Queens in Aslan's Country in The Last Battle; Susan does not. Asked by a child in 1958 if he would please write another book entitled "Susan of Narnia" so that the entire Pevensie family would be reunited, C. S. Lewis replied: "I am so glad you like the Narnian books and it was nice of you to write and tell me. There's no use just asking me to write more. When stories come into my mind I have to write them, and when they don't I can't!…" Lucy Pevensie Lucy is the youngest of the four Pevensie siblings. Of all the Pevensie children, Lucy is the closest to Aslan, and of all the human characters who visit Narnia, Lucy is perhaps the one who believes in Narnia the most. In The Lion, the Witch, and the Wardrobe, she initiates the story by entering Narnia through the wardrobe, and (with Susan) witnesses Aslan's execution and resurrection. She is named Queen Lucy the Valiant. In Prince Caspian, she is the first to see Aslan when he comes to guide them. In The Voyage of the Dawn Treader, it is Lucy who breaks the spell of invisibility on the Dufflepuds. As an adult in The Horse and His Boy, she helps fight the Calormenes at Anvard. Although a