What pen name did C.S. Lewis use for his 1933 allegorical novel The Pilgrim’s Regress?

C.S. Lewis used the pen name Clive Hamilton for his 1933 allegorical novel The Pilgrim’s Regress. The name separated the book from Lewis’s academic reputation and reflected his early preference for literary privacy.

The novel follows John, whose journey through a symbolic landscape represents a search for meaning and Christian faith. Its title deliberately echoes John Bunyan’s The Pilgrim’s Progress, but Lewis’s book also responds to modern philosophical and cultural ideas. The first edition appeared in London in 1933.

Lewis later became much more publicly associated with his initials and with Christian apologetics. Readers sometimes confuse Clive Hamilton with Lewis’s other name, “Jack,” the familiar name used by friends and family. “Clive Hamilton” was a publishing pseudonym, not Lewis’s legal name or an additional Christian name.