I've not seen any really good Cadfael fanfiction, but I've not read any screamingly awful either. I'm only about a third of the way through canon, so I've still got the real stuff to enjoy. I saw the television series long before I read the books, so the uncanonicity of Beringar didn't bother me as much as it should. In that context, I thought one of the television Beringars was ok: at least he could act!
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