The Silver Chair 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 the frame story, Eustace and Jill are students at a horrible boarding school, Experiment House. "The Silver Chair" is dedicated to Nicholas Hardie, the son of Colin Hardie, a member of the Inklings with Lewis. Macmillan US published an American edition within the calendar year. "The Silver Chair" was adapted and filmed as a BBC
The Chronicles of Narnia Caspian", "The Voyage of the Dawn Treader" and "The Horse and His Boy", were already complete, they were not released immediately at that time, but instead appeared (along with "The Silver Chair") one at a time in each of the subsequent years (1951–1954). The last two books ("The Magician's Nephew" and "The Last Battle") were published in the United Kingdom originally by The Bodley Head in 1955 and 1956. In the United States, the publication rights were first owned by Macmillan Publishers, and later by HarperCollins. The two issued both hardcover and paperback editions of the series during their tenure