Board Thread:Character Discussion/@comment-4772791-20130503190945/@comment-178.85.42.130-20130511030159

Actually, when rumpelstiltskin was supposed to die from Hook, that could be seen as the undoing. Yet, Mary Margaret saved him per his instructions.

As you know, seeing in to the future gives him the ability to adept to it. This may have happened and then the prophecy could be seen as void.