- During the first war, he could inflict unbearable pain through the mark on any devourer, but now it only pulses when summoned. I think he hasn't fully recovered, or maybe the tag has lost some of its properties in the meantime.
that is a lie he leaves at chapters 17 and 18 but it is chapter 19 where it truly starts
Note: If you don't care about Flashbacks and Jon's childhood in Winterfell and wants to get straight to where Jon decides to leave Winterfell. I would skip to Chapter 13.