User blog comment:Ḡwẵine Ḹٍٍkƨ Ĺiĸe Ͼềлȑềd/WORST plot hole in the HISTORY of 'Merlin'/@comment-5822565-20121014115905

I said that when i was watching it last night! Arthur knew Mordred was a druid, he returned him back to them in series 1 episode 8 The Beginning of the End. Therefore he must have known Mordred had magic!