The Gospel of Satan is a horror thriller quality, brilliantly written subtly dosing the paranormal and historique.Patrick Graham cleverly mixes genres investigation, the thriller based serial killer, the conjugate horror novel to Satanism and historical inquiry to Dan Brown; But Patrick Graham writes much better than Dan Brown novel playing on different tables and with an intensity that never relaxes. The opening of the novel is so terrifying as well as the introduction of the character of Marie parks .It writing scalpel oozing pain strikes us that the author in nearly 600 pages. We can deplore that the confrontation between the father and Caleb Carzo the traveler but slightly forwards until the last page P.Graham manages to hypnotize us with a diabolically mastered thriller.