Not my top theories, but I agree this scenario is possible. I don't know what a child sold like this would be worth though. Europeans and Americans don't find Jayme's coloring so rare, but it is very rare worldwide. Didn't the Barbary pirates and Ottomon Turks used to kidnap blondes and redheads for their harems?
Don't know about the Barbary pirates or Ottoman Turks, but would not be surprised. As to monetary worth, try Googling about women auctioning their virginity and see what some people will pay. Mind-boggling!
and I hate speaking about Jayme's "monetary value" as if she's a thing instead of a precious young person, but that's the mindset of abductors, unfortunately.