What is the title of C.S. Lewis’s 1936 allegorical novel about a medieval knight?

C.S. Lewis’s 1936 allegorical novel about a medieval knight is The Pilgrim’s Regress. Its subtitle, An Allegorical Apology for Christianity, Reason and Romanticism, signals the book’s intellectual and religious purpose.

The story follows John, a character who leaves his home after encountering a troubling desire called the Landlord’s warrant. His journey through a landscape of ideas draws on the structure of John Bunyan’s The Pilgrim’s Progress while addressing modern philosophies and Lewis’s own return to Christianity.

The novel was Lewis’s first published work of prose fiction. It is less familiar to general readers than The Chronicles of Narnia, but it helps explain his developing method of presenting difficult theological and philosophical questions through imaginative narrative. The book is an allegory rather than a direct autobiography.