I thought that was A Dance of Dragons! Oh yeah have I read ASoIaF, it's my favorite series of all time. I've got them all in hardback signed by GRRM except Dance, still need that signed. I thought I knew how things were going to go at the end of the series, but GRRM kinda blew my hypothesis out of the water at the end of Dance, lol.
I can guess what you thought, and I thought the exact same thing. But:
Spoiler
Since he's a warg...he's not necessarily entirely dead
if that's the incident you were referring to :)
I will definitely be making a discussion thread in OT later and we can discuss. I love it.
ALSO - very jealous of your signed copies!! Where did you meet him?
edit to fix spoiler tags.