The third and final volume of The Witchcraft of New England details the rise, development, and fall of Americans' belief in witchcraft, presenting both sides of the argument from opposing writers. The Witchcraft Delusion in New England is a combined publication of two opposing arguments regarding witchcraft, with specific reference to the Salem witch trials. This volume also features an analysis of occult practises. Following the 1692-1693 Salem witch trials in New England, USA, a Puritan minister, Cotton Mather, compiled several accounts of witch hunts and trials in Massachusetts alongside his own sermons and published them in a book, Wonders of the Invisible World (1693), arguing that witches and devils are real and should be feared. In 1700, Robert Calef published More Wonders of the Invisible World, refuting Mather's ideas. This volume combines these books to present a balanced argument on witchcraft in America.