This book will define, illustrate and illuminate the reader in giving specifics on how to properly diagnose and ultimately solve true cases of Demonic 'haunted houses' and 'Demonic possession'. This is a field text book the author will share his uncommon experience and knowledge. The following is a review by Gerald Brittle, Author of books: "The Demonologist: The Extraordinary Careers of Ed & Lorraine Warren" and "The Devil in Connecticut": "All of the necessary information is there, Mr. Deel covers all the bases to create an up-to-date read on a very complex subject, as it reveals the 'Hows'...