Author; Dion Fortune
This is an excellent example of the occult genius of Dion Fortune. This book harbours a wealth of personal experiences of the author and includes chapters on Signs of Psychic Attack; Projection of the Etheric Body; Vampirism; Hauntings; The Pathology of Non-Human Contacts; The Risks Incidental to Ceremonial Magic; Distinction Between Objective Psychic Attack and Subjective Psychic Disturbance; Non Occult Dangers of the Black Lodge; Methods of Psychic Defence, etc. Dion Fortune's writings in this book are masterful in demonstrating the enormity of the subject she has undertaken to reveal.