The thrilling conclusion to C.S. Lewis' acclaimed Cosmic Trilogy that began with Out of the Silent Planet and continued with Perelandra. Mark and Jane Studdock are a newly-married couple about to be drawn into events very far out of the ordinary.
The morning after a horrific nightmare about a decapitated head, Jane sees the same face in a newspaper, a brilliant French scientist guillotined for poisoning his wife. Jane has the growing feeling that she is being warned of something real and sinister.
Mark, a sociologist, has joined an institute which aims to harness human society. As he is drawn further into this sinister organisation, he discovers the truth about his wife's dreams.