So a couple times in the Dresden Files, Harry has mentioned that targeted magic, spells and curses and such, doesn't cross over into the Nevernever very effectively from the mortal world (and vice versa, I would assume), to the point that crossing over could be used as a method of escaping hostile magicks. So my question is this: is it possible that Esteban and Esmerelda are still alive in the Erlkings keeping? And could we see them again in the future? I think they would make for a good return villain. Possibly leading whatever remained of the Red Court, if there are any. Or possibly trying to start a new court? I don't think it would be too hard to write them back in to the story. Anyone else have any thoughts?