I'm back at Fjel town. I'm on my way to the pub to see Jariel because the reason why I want to see him is that I want him to know about the plan to annihilate the Headless Cult since he trusted me and so I have to at least be open with him. I'm not hoping for him to understand and receiving his permission because the system itself warned me that if I accept this quest, Jariel will definitely be going to hunt me down and he might kill all the people that I asked him to rescue during the invasion.
I know that he knows because Jariel has so many eyes around Fjel town and the No Man's Land. I have seen so many NPCs that should be here in town are now no longer here or went missing. Those NPCs might be the spies from the three sovereignty and Jariel killed all of them and cleaned the town.