I love the idea of Regina’s mom having the dagger. I like the idea that her mom is the miller’s daughter to. Maybe Regina was her firstborn, and after Rumpel took her way, Cora went and found the dagger and ordered him to give Regina back to her. They are saying that Cora has an almost obsessive love of Regina (like she does Henry) and that would explain why. Then Rumpel could have got the dagger back somehow or Cora could have let him have it.
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