Board Thread:General Discussion/@comment-4962906-20151007080647/@comment-24674051-20151013203047

OR...

considering that it's possible that Merlin is the original Dark One, maybe it was the original SAVIOR that trapped him in the tree. Savior could be a title, just like Author (or Apprentice, Dark One, or even Sorcerer) that gets handed down. And Emma is just the latest of that line. and I say is, because she is still the Savior, as well as being the Dark One.