Arriving at Windhelm I decided to check in with Njada but only got to the town center when a massive Ebony Warrior approached me and having "accomplished everything" wanted to duel me as his final challenge in life. I told him I'd think about it, and when he turned around I called the guards on him (by making him angry via pickpocket). I stood back as I watched the Ebony Warrior decimate the five guards that arrived, learning that he had decent restoration skills and that he too was dragonborn. That's not such a big deal these days.
I should really consider lighting a torch for screenies...
Not willing to risk the lives of any more citizens I let the giant of a man leave after he sheathed his weapon. I had hoped to track him outside but he simply vanished once he reached the gate! Concerned for her safety, I thought I'd advise Njada to move house but she adamantly refused since there were others in the city that required her protection.
My next stop was Riverwood where I recruited Bo after returning Marauder's body to the camp (it sort of got there on its own actually, kinda strange). She mentioned a possible lead in the local tavern and sure enough a dunmer named Mandryn was there asking for my help to track down a dangerous fugitive from Morrowind for a measly 500 gold reward. "Did this guy wear Ebony Armor?" I asked, "If so I think I've already run into him."