I've got to do some reading of overnight posts now, but I thought I'd just mention this: after my suspicions of Oddwen yesterday, I did a little lorebook studying, because despite her being my ward, it is a long time since her branch of the family and mine actually had much to do with each other.
What I found was that her ancestors have often behaved this strange and elusive way, whether infected with lycantrophy or not.
Which is helpful.
Well, more later once I've caught up.