Narnia 4: The Silver Chair is a proposed adaptation of the fourth book in C.S. Lewis’s The Chronicles of Narnia series, The Silver Chair. While the project has been discussed over the years, development has been delayed, and there has been no official release as of late.
The story begins with Eustace Scrubb, now a reformed character after his journey in The Voyage of the Dawn Treader. He and his classmate Jill Pole are transported to Narnia by Aslan and given the task of rescuing Prince Rilian, the missing heir to the throne of Narnia.
Their journey takes them through perilous landscapes, including the bleak northern wastelands and the underground lair of the sinister Lady of the Green Kirtle, also known as the Emerald Witch. With the help of Puddleglum, a pessimistic but loyal marsh-wiggle, they face trials of courage, friendship, and faith.