This book is dangerous. By opening it up, you are inviting a world of evil into your life. I am a non-denominational christian who was raised catholic, so i've seen both sides of the coin regarding excorcism and spiritual warfare. Not only is this book one-sided in favor of oldschool catholocism, but it focuses on evil in such a way that compells and captivates the reader, glorifying Satan in a not-so-obvious way. Remember, Satan is the father of lies, and many might think reading a book about excorcism written by a jesuit priest is harmless and safe, when in fact it is not. After the introduction and story of Father Michael in China, i felt driven to prayer, and then promptly returned the book to the store i purchased it from earlier that same day. I should have just burned it instead.