Man, I thought that was going to be the end of this arc... guess not. Hope it's not the end of the book, though.
Only thing that bugs me about this is that we still don't really know what ole girl is (while the book itself repeatedly makes references like 'before she knew what she really is...") and I do hope that gets explained at some point. Also, how the guys she affects wind up learning the magic - the symbols and shit, since she hasn't really been shown teaching anybody.
But those are minor quibbles and the book remains simply outstanding.