"I don't know," Mary Margaret admits, fear creeping into the edges of her voice - but it's more than that, more than fear. There's sadness in it, sadness and overwhelming loss, and she closes her eyes against it, as if blocking her sight will somehow block the vision in her mind's eye.

"I see - I saw something, for a minute. I don't know," she finally adds, lifting her head. Was it a memory? It had felt very real, that darkness, that evil with its undertones of pain and rage, that black cloud threatening to overcome. "It's gone now, whatever it was."