The third novel in the science-fiction trilogy by C.S. Lewis. This final story is set on Earth, and tells of a terrifying conspiracy against humanity.The story surrounds Mark and Jane Studdock, a newly married couple. Mark is a Sociologist who is enticed to join an organisation called N.I.C.E. which aims to control all human life. His wife, meanwhile, has bizarre prophetic dreams about a decapitated scientist, Alcasan. As Mark is drawn inextricably into the sinister organisation, he discovers the truth of his wife-s dreams when he meets the literal head of Alcasan which is being kept alive by infusions of blood.Jane seeks help concerning her dreams at a community called St Anne-s, where she meets their leader - Dr Ransom (the main character of the previous two titles in the trilogy). The story ends in a final spectacular scene at the N.I.C.E. headquarters where Merlin appears to confront the powers of Hell.