"Mistress Madness" is a fantasy novel by the famous writer Stephen King, published in 1986. This book tells the story of a town that finds itself under the influence of supernatural forces, which lead to mysterious events and unusual phenomena. The main character, the psychotherapist Claudia, decides to understand the reasons for these phenomena and enters into a fight against the dark forces that are in the city. The novel "Mistress of Madness" not only captivates with its tension, but also leaves the reader with deep moral reflections on the power of faith and mental strength.