The thrilling conclusion to C. S. Lewis's acclaimed Cosmic Trilogy, That Hideous Strength brings the battle between good and evil to Earth in the tale of a terrifying conspiracy against humanity.

Mark and Jane Studdock are a newly married couple about to be drawn into events very far out f 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 meanwhile been enticed to join the National Institute for Co-ordinated Experiments, which aims to harness human society. As he is drawn further into the sinister organisation, he discovers the truth of his wife's dreams, while she seeks help at a community called St Anne's, lead by the charismatic Dr Ransom.