User blog comment:Morganaforever/Morgana's torturer in 5x08/@comment-5204542-20121118150837

Line from the next episode:

» ‘Although we do share one thing, a hatred for Morgana.’

I reckon someone says this to Arthur. Could it be the person who imprisons her?

http://www.cultbox.co.uk/spoilers/teasers/5406-merlin-the-hollow-queen-teasers