In ACoK, the night before fleeing Harrenhall Arya enters Rooses's solar to find him reading an old book which he promptly burns. My questions are simple: What was he reading? Why did he burn it? Why did he burn it himself instead of having Arya do it as he did on previous occasions (an earlier night he asked Arya to "take care" of Fat Walda's letter and she tosses it into the fireplace- something I doubt she would do unless she was absolutely sure that was Lord Leech's intention.). The