Board Thread:General Discussion/@comment-4962906-20151016094903/@comment-4975807-20151020042426

From "The Broken Kingdom", I perceive there's an implication that the enchanted sand has a permanent effect once it's used on someone (unless there's a magical way to undo it), judging from Guinevere's reaction towards Lancelot when she met him again in Camelot. I don't think Emma's memory wipe undid the sand's effects because in present time Guinevere is still loving and supportive of Arthur, especially when she showed concern for Excalibur's disappearance shortly after their arrival to Storybrooke. The old Guinevere, prior to the sand attack, wouldn't have cared about Excalibur. She was ready to leave Arthur because he was so obsessed with finding the dagger, and she wanted him to choose between her or his quest.