They say the Da Vinci Code is badly written. That's enough to put me off. Life is too short.

But what really gets me is that people are reacting as if this stuff about The Priory of Sion and Mary Magdalen and Rennes Le Chateau were new and shocking. It isn't. It's all there in the 1982 non-fiction best-seller The Holy Blood and the Holy Grail, which is still in print. Also it's all over the Net. What sheltered lives some people must lead!

Also, if Brown had researched properly- instead of just reading The Holy Blood and The Holy Grail- he'd have known that the Priory of Sion has long since been revealed as a hoax. I'll admit I didn't know that myself before last night (when Channel 4 revealed all) but if I'd been proposing to put the Priory at the centre of a novel I'd have made damn sure I found out all I could about it before I went ahead and committed myself.