Merlin made a look of agreement and nodded. "She also spent several years institutionalized afterwards, as she was, as one might say, quite away with the fairies. She is powerful because she has a lot of belief, and she doesn't always know what to do with it. I worry for her. And if she is unhealthily infatuated with our Little John, perhaps he ought to be forewarned. Once we know where he is, of course." He looked at Luna, trying to assess how she felt. She didn't look too shocked by the whole thing, which was good.