Zoso Achilles
Member
I'm reading through the series again and something stood out to me from the prologue of CoK when Maester Cressen dies trying to poison Melisandre. The poison he uses is a small crystal that's effect is to block off the throat and give the feeling of being strangled. Was this the same thing used to kill Joff? There's even a line about how the poisoners often keep it hidden in a ring, which is a similar situation to Sansa's hairnet.