I do not know much about St. Cyprian, except I was told the book was banned in many parts of the world. Some believe it a book of Satan's own personal spells. I've also been told that many that do read it start experiencing a lot of demon activity. Some even believe that people with drug addictions will even experience demon activity if they've just been in contact with the book. Ypu don't even have to be a believer to have these things happen. Like I said, this is all coming second hand, so if I'm mistaken I would love to be corrected.Because I really hate thinking there is a book with that much power.