Board Thread:General Discussion/@comment-25926288-20151026005934/@comment-32390199-20151026134020

It also surprised me that Merlin didn't say a word about his Apprentice, like he never really cared for him xD

But on to the Nimue as the Dark One. Merlin said that the Dark One destroyed the only woman he had ever loved. That line could refer to the Darkness itself, as it destroyed the woman he loved, as she is not who she used to be. However it could also be that the Dark One just killed his loved one.

I personally still kinda hope that Morgana is the Dark One and the former apprentice of Merlin (maybe even the older sister of the apprentice xD) who also was in love with Merlin. But Merlin loved Nimue who gave him Excalibur and that Morgana took the darkness on herself and killed Nimue. And that she eventually found a loophole explaining why she can still be alive and the big bad of 5B.

Morgana also trapped Merlin in some other versions in which the Lady of the Lake is less prominant