The book is an in-depth look into the Witchcraft Delusion at Salem, Massachusetts in 1692. The book covers the power of imagination, illusions, omens, and sorcery, and a look at medical quackery at the time. It is full of stories of people who feared they were cursed, or suddenly had an onset of strange and mysterious symptoms that they believed were from paranormal beings. People were fearful, terrified of witches and demons, and took great measures to protect themselves and their loved ones. The book is an interesting look historically at what people were afraid of at that time, and the stories that surfaced.