It's all the stuff in Mournhold. When you are level 6 you are attacked by the Dark Brotherhood. Then you can work for King Helseth and Alemexia, mostly in the sewers of Mournhold (pretty cool missions) and at the end you'll end up with 2 cool special effects swords.
Find your way to mournhold and the rest will pretty much explain itself. (if you can't find it I'll put a small map up)
Well I'm also looking forward to seeing some images of your character (and I'm at the very least expecting a furry skin)
"In open desert any direction is as good as the other." Fremen saying