Board Thread:Spoilers!/@comment-26159109-20151007195419/@comment-6175354-20151122064018

8Rob wrote:

It was probably the same back in Camelot. But Rumple has not there: He was in Storybrooke. And there is only one way to go back to Storybrooke: The Dark Curse

Maybe Hook cast the curse and Emma pulled a Zelena There is almost no doubt, in my mind, that Hook cast the current curse.

The question is, who's heart did Hook use? Did he somehow channel Nimue, and kill Merlin? Or did he "unsand" Guinevere, and force her to sacrifice Lancelot?