But how the hell would Amanda get roped up with the Fae enough to become one of them? We know Molly became one because she was so wrapped up with Lea that she somehow qualified to inherit the position. Is there really a way for that to happen with a position on a lesser scale? Christ, so many better questions than the crap I actually asked.
A. your assuming she's gonna do anything willfully
B. how do you know she doesn't.... Molly proved the fae heritage in her bloodline, Molly, as WL, has been spending time around her family like it's just her family, with her sisters, acting like everything is the same. But the dynamic of what she is is entirely different. And exposure to the fae has consequences. What I describe is perfectly correct, regardless of intention. If Molly suddenly learned to feed on latent adoration or other belief powers latent in the world, can you say her sister would not be a primary boost right at this very moment?
In a WoJ, Jim described Molly as being pure mortal prior to becoming the Winter Lady. At least, that's how it sounded. So Molly may not have had any fae in her ancestry at all.
If so, then it seems that it's not even necessary for someone to be part-fae in order to take up one of the Faery mantles. They just have to be... they have to have whatever the hell happened to Molly happen to them. Whatever that was, exactly.
The problem is that we really have
no idea* what happened with Molly to make her vulnerable for mantle-hood. Did she make bargains with Mab or Lea? We never saw that. Was it just that she was tied into Harry's bargain with Mab? She was his apprentice, and therefore a part of his "demesne" or whatever, according to Faery law? And so when he became Mab's subject, Molly became Mab's subject as well, by default? It seems like human free will ought to have come into play somewhere in there before Molly's choices were all suddenly taken away from her.
Or maybe it was something else. Simple proximity to one of the fae over an extended period of time? The same proximity while debt was being paid or accrued, in the fae sense of the term?
If proximity is all that is required, then the other Carpenters are at risk. If debt is required, then they might be in the clear(though it would be so easy for a casual statement between siblings to end up starting a fairy balance sheet). If one must be considered a subject of one of the Faery Courts-- in however tenuous a fashion-- then the other kids are probably safe in making casual comments.
* (Okay, I realize I said we had no idea, and then I went on to state some of those ideas that I said we didn't have. I'm not changing it. Sometimes emphasis is more important than literal accuracy.)