User blog comment:Dryuuu/THE ULTIMATE QUESTION BLOG OF SERIES 4/@comment-3325613-20120205200415

9-3 I don't think Morgana had ever met the Dochraid before (she was quite scared when she first saw her), but she had heard of her (maybe by Morgause). I think the hag must have been quite important in the days of the Old Religion, maybe being one of the oldest creatures or most knowledgeable. As for the image in the trailer, it's either another deleted scene that hasn't been released (which would be outrageous) or just a clip they wanted to specifically use in the trailer. I would add another question: where's the Dochraid lair? In the outtake the barman says that "there is a cave, beneath the walls of the city..." but if you watch the episode the hill with the big tree looks nothing like Camelot.