Which C.S. Lewis work adapts the medieval romance of Cupid and Psyche?

Till We Have Faces is the C.S. Lewis work that adapts the classical romance of Cupid and Psyche.

Published in 1956, the novel retells the myth through the perspective of Orual, a princess and later queen of the fictional kingdom of Glome. Instead of centering the story on Psyche alone, Lewis gives the older sister a complex voice and makes her resentment, love, and accusation central to the narrative.

The source myth appears in Apuleius’s Latin novel The Golden Ass. Lewis drew on that material but created a darker, psychologically detailed retelling with its own political and religious world. The novel’s title refers to the movement from concealment and self-deception toward truthful self-knowledge.

Till We Have Faces was Lewis’s last completed novel. It is often described as one of his most sophisticated works of fiction, but it is not part of the Chronicles of Narnia and does not share Narnia’s setting or characters.