Board Thread:Spoilers!/@comment-1916997-20150926195527/@comment-6175354-20150927152902

Eskaver wrote: Yes, Robin impregnated a Frozen woman.......... Did you not know, that happens every day in Storybrooke?

Anyway.... my theory:

5.08 Birth is the episode where Emma finally embraces the Darkness, and is reborn as the Dark Swan.