Board Thread:General Discussion/@comment-4962906-20151016094903/@comment-1732287-20151017141645

Maybe it's similar to 3B in that the heroes actually cast it. Maybe they realised they couldn't get rid of the darkness so tried to curse themselves back to a Storybrooke without magic again. But Dark Emma finds out and turns it on them instead. But then that wouldn't really be as bad as Emma seems to be making out.