The Silver Chair late 1990. It was the fourth and last of the Narnia books that the BBC adapted for television. On 1 October 2013, The C.S. Lewis Company announced that it had entered into an agreement with The Mark Gordon Company to jointly develop and produce "", following the film series' mirroring of the novel's publication order (in contrast to Walden Media's initial pushing for "The Magician's Nephew" during planning for a fourth film). Mark Gordon and Douglas Gresham along with Vincent Sieber, the Los Angeles-based director of The C.S. Lewis Company, will serve as producers and work with The Mark Gordon
The Silver Chair accompany Eustace and Jill back to their own world for a brief time, where they drive off the bullies before Caspian returns to Aslan's Country. Experiment House becomes a well-managed school, and Eustace and Jill remain good friends. In Chapter IV of the book, an owl speculates that the Lady of the Green Kirtle – the enchantress of the Underworld – may be "one of the same crew" as the White Witch from "The Lion, The Witch, and the Wardrobe" and "The Magician's Nephew". Some readers have suggested that she may in fact be the White Witch brought back to