I always thought the Priory of Sion thing was really low, stupid actually. Likewise, I think it foolish to include that part in any story, fictionalized or not. Throw in the Templars, make a story about Illuminati or something but don't use a group that is known to be a facade.

But the Nag Hammadi texts are very interesing to me, as are the texts in the Dead Sea Scrolls. What do you think of those?

And what's with that church in France at Rennes-le-Château?