Protestant exorcist and pastor G.P. Haggart breaks down the study of demonology for educational purposes. Forward by Demonologist Tracy Bacon. G.P. Haggart tells the story of his first encounter with a demon that propelled him sixteen years later to battle demons and empower victims of demonic haunts. Discover the knowledge needed to confront demons, how to investigate a demonic haunt, how to debunk a demonic haunt, characteristics of demons, the science of possession, the origin and nature of evil, the four theories of the origins of demons, exorcism, diabolical metaphysics and much more.