Death Blow to the Spiritual Movement: The True Story of the Fox Sisters is a book written by Reuben Briggs Davenport. This work presents a complete and detailed history of the work of the Fox sisters - Margaret and Cathy - who became famous in the mid-19th century for their séances. The book reveals the secrets of this phenomenon, revealing details that contradict the popular worldview and destroy myths related to spirituality. Through evidence and analysis, the author proves that the Fox sisters used various methods of deception and exposes their true motives and reasons. The topic of spirituality and its influence on society is explored in depth, forcing the reader to reconsider his ideas about the supernatural and other realities. "The Death Blow to the Spiritual Movement" is a fascinating and investigative work that reveals the secrets of the past, which leave reflections in modern realities.