Which name did C.S. Lewis use for his 1933 allegorical novel about a spiritual journey?

C.S. Lewis used the title The Pilgrim’s Regress for his 1933 allegorical novel about a spiritual journey. Its subtitle, An Allegorical Apology for Christianity, Reason and Romanticism, states the book’s intellectual purpose.

The story follows a character named John as he travels through a symbolic landscape while seeking an object called the Island. The journey reflects Lewis’s concerns about Christian belief, reason, desire, and the limits of competing philosophies.

The title deliberately recalls John Bunyan’s The Pilgrim’s Progress, the classic 1678 Christian allegory. Lewis’s book is not a retelling of Bunyan’s narrative, however. It is a modern and more argumentative work, filled with personified ideas and conversations.

Lewis wrote the novel after his return to Christianity and used it to express positions that were still developing. It appeared before several of his better-known apologetic works, including The Problem of Pain and Mere Christianity.