Authors Preface, Foreword, and Beyond Amityville Summary and Analysis

"The Demonologist" is a story about the experiences and beliefs of the Warrens, a couple dedicated to the work of demonology. Through their story, readers can experience some of the terrors of possession, and can form an understanding of the terrors that await those who dabble in the occult.

In the Authors Preface, Gerald Brittle reiterates his belief that all information presented in the book is true, as per the Warrens. He also notes that mankind is rarely abused by the spirit world, and reminds that mankind is capable of creating his own problems. He reminds that to blame spirits for mankind's faults is irresponsible. His final notes remind readers that the information in the text is edited, where necessary, to protect individuals, and that his work has been edited by...