
C.S. Lewis once described Till We Have Faces as his best work. It is a retelling of the Psyche myth with a subtle Christian bent. One of my professors, Dr. Jim Hand, once posed the question, "Is Psyche a case of spirit becoming flesh, or flesh becoming spirit?" It is a great novel with much depth.
The Lord of the Rings is spectacular. The movies were remarkable feats, but they missed the trilogy's heart (and ruined some great characters). It's dense reading, but the prequel The Silmarillion is perhaps the only successful epic mythology written in modern times.
C. S. Lewis' "Till We Have Faces" is a remarkable adaptation of the Cupid and Psyche myth, from the perspective of Psyche's sister.
I loved Spider Robinson's Variable Star, based on an unfinished outline by Robert Heinlein.
How can we know the gods face to face, till we have faces?