Random thought, as I was scanning the prologue to AFFC... but I wonder if Archmaester Walgrave is more than he appears to be. He is described as being old and forgetful, terribly distracted... but I wonder if he isn't actually the "white raven" foil to Bloodraven. Sounds like Walgrave could be a warg who spends too much time in his ravens. Or he could be some alternative version of a greenseer. Bloodraven seems sort of slow, too, when he speaks to Bran in person - and ther