I have passed the imperial messenger a couple times at Vulkel guard but wasn't ready to do the prequel quest. Now that I am ready, there's no messenger. Got the scroll from the crown store, used it, and no quest start appears. No Tharn in vulkel manor.
I am currently in the middle of the main quest. Next step is to meet Tharn in Grahtwood. Does that interrupt meeting Tharn for this? Do I need to complete the main quest now, which I did not have to do when I passed by the messenger before?
Or is this pre-quest over?
Rather confused at this point.