The Silver Chair (The Chronicles of Narnia, book 6)
The Silver Chair is a children's fantasy novel by C. S. Lewis, published by Geoffrey Bles in 1953. It was the fourth published of seven novels in The Chronicles of Narnia (1950–1956); it is volume six in recent editions, which are sequenced according to Narnian history. Like the others, it was illustrated by Pauline Baynes and her work has been retained in many later editions.
The novel is set primarily in the world of Narnia, decades after The Voyage of the Dawn Treader there but less than a year later in England. King Caspian X is now an old man, but his son and only heir, Prince Rilian, is missing. Aslan the lion sends two children from England to Narnia on a mission to resolve the mystery: Eustace Scrubb, from The Voyage of the Dawn Treader, and his classmate, Jill Pole. In England, Eustace and Jill are students at a horrible boarding school, Experiment House.