I’ve just started book 5 in the Song of Ice and Fire and I’ve got a theory, which is probably not going to come true, because George R.R. Martin is writing the books and not me, but there may be spoiler alerts in this blog if you’re not up to book five (season 5? I don’t know how the TV show works, I’ve never seen it), but if you are worried about spoilers, ha, ha, your problem, you could stop reading now, I suppose,or trust that I won’t give away too much (not making any promises) or you could go on the idea that since I’m guessing wildly, spoilers don’t count, and they really don’t unless I’m right and, to be perfectly honest, I’m usually not.

Not Who He Appears to Be?
Anyway, here it is: Since Jon Snow, according to the shapeshifter in the preface, has latent shapeshifting powers but doesn’t really know it yet, and Bran Stark does, too, and since Jon and Bran have the same father but a different mother, they must have inherited it from old Ned, which might mean that Ned Stark is not actually dead, but his soul jumped into the body of the nearest person at the time of his death, which would be the executioner, Ilyn Payne. And it would make sense that weird old Ilyn never told anybody about this, being as his tongue is cut out.
I suppose this theory could also raise Robb from the dead, too, but then he’d be inhabiting the body of one of the Frey’s, and I get the feeling they are in for a long, slow, and brutal decimation of their ranks at the hands of the semi-dead Catelyn, in revenge for Robb’s murder, but that would just be too weird because it could lead to Catelyn killing her son without knowing it was her son to avenge her son even though her son will not have had been murdered. Not completely, anyway.
A lot of tension but too many tenses.
Far-fetched, I know, especially since people you thought dead but later turn up alive (like Bran or Catelyn), usually reappear within 4 or 5 chapters at most or at least within the same book.
But, I guess I’ll just have to read it and see.