The first and probably the last "pagan" novel I ever tried to read was Marion Zimmer Bradley's The Mists of Avalon.
To be honest, even as a moderately observant Catholic teenager, going to Confession semi-regularly, I'd have lapped up the incest. It was the paedophilia that actually made me freak out. So it came as an odd sort of relief to find out eventually that the author herself was actually married to an outspoken paedophile - albeit a gay one. (Now there's a surprise! And that last link is from this site, BTW.)
Before she died, however, Marion Zimmer Bradley gave up on her experimentations with witchcraft/paganism (and presumably gay and lesbian fantasy porn) and returned to the Episcopalianism of her childhood. Not unlike Anne Rice, I suppose, who returned to her traditionalist Catholicism after a bout of cancer (or some such unpleasantness)!
Rice's lapsation had seemingly gone hand in hand with writing homo-erotic/paedophile vampire stories such as Interview with the Vampire, in much the same gay paedo "Catholic" vampire tradition as Montague Summers. At the same time, she also brought her son Christopher up as a homosexual. (Now apparently he writes gay pseudo-porn of his own, but I remember seeing a TV interview with him before his looks went, and he was truly scrumptious!)
Sadly, Rice wrote only one Catholic book, about Jesus when he was a little boy. She also posted a bit on the traddy web forum Angel Queen. (And yes, that is what it was called.) And then she promptly lapsed again when it turned out that (Quelle horreur!) actually the Catholic Church is not terribly keen on gay marriage.
