Both the introduction and the book's marketing make sensational claims for the book's magical power. The back blurb claims it is "the most potent and potentially, the most dangerous Black Book known to the Western World," and that its rituals will bring "beings and monsters" into "physical appearance". The book's introduction gives readers frequent warnings that the powers it contains are potentially life-threatening, and that perfect mental health is needed; otherwise the book is extremely dangerous. It claims a curse afflicted those who helped publish the book. It also claims that the Golden Dawn methods of magical banishing will not work on the entities in this book.