Exactly. However, many people that read the book (including a lot that I know and discussed the book with) take it to be a "real" conspiracy and can't see that it is intended to be entirely fiction.And, yes, some people would definately find it to be sacriligious, like my coworker does. But it is quite clearly a work of fiction.
Regarding the book's anti-Catholicism, I picked up the same vibe. But, taking the book for what it's worth, a fast-paced thriller, I did find the book to be pretty good. Though what's-her-name (the female character) was pretty flat, and a lot of the dialogue was really unrealistic.
