After that quest you should be onto stage 2 of the questchain there, this bit:
Chapter 2 Dark Awakenings (link below will take you to that section of the guide)
An update on this one. I logged in today and “Light’s Purchase” had spawned. Went and handed the quest in there…yet no follow on. Obviously the one in the North is now gone. I simply want to carry on this quest line but it doesn’t appear to be possible?
Final update - this is sorted. I’m not sure if it was me being dim, or if it was simply bugged yesterday. But I have found a new quest to pick up and continue the quest line.