On the topic of Dan Brown I strongly advice anyone against believing anything he writes
I also strong advice you not to be expecting a good read, lol, the characters are soo poorly developed
and yes the illuminati did exist, athough it seems just lyk there predecessors, the Kinghts Templar, they have become shroudd in conspitacy and its ahrd to sift the truth from the bull, but they defintely existed, as far as all he conspiracies and the NWO go, well thats a different matter.
Some of it, you ahve to take with a pinch of salt
Imran