The নেকড়ে that stopped Emma from leaving Storybrooke has not been প্রদত্ত an identity, but we have been প্রদত্ত clues enough to determine it. In a sneak peek for tonight's episode,Graham is often featured with one নেকড়ে as his companion. In another sneek peak,the Evil কুইন later reveals that he was raised দ্বারা wolves. Since everyone in the fairy tale land was affected দ্বারা the curse,even animals, I believe that the নেকড়ে that kept Emma from leaving is the same নেকড়ে that was Graham's ally and that possibly raised him.