OK. Well, I'm not sure how much it will help, but my instinct says to apologize. Back off. Tell her we've made some hasty assumptions, and it's been a long, irritating day. We do not have to mean this. If she accepts that much, then ask her if she'd be willing to work with us from the start of these events, to address the assumptions we've made, with regards to her. Bear in mind she might lie to us. There's no need to make it obvious we think this if it comes up. Anyway, it's pretty clear she's not going to go against whoever's watching her. There are a couple ways to handle that. One is forget about it. I'm not sure we need to know at this point, but we probably will eventually. Two is to try to get her to give us "harmless" stuff that could serve as clues. If she's more favorable to us, this is more likely to happen. But, really, what I'd like to do is ascertain how we can get our spellcards back, and I think THAT is an area we can get her to give on.
Cut by Sophilia: I am liking the way you think very very much.