I killed the dopplegangers in the Seven Suns, and got my reward from Scar. I then killed the ogre mage and all his carrion crawlers in the sewers, but when I came back to the Headquarters, he wasn't there. I searched everywhere. I killed the guys in the Iron Throne headquarters and was told by a flaming fist guy to talk to Scar. I cannot find him, but I don't want to leave without my award.

<font color="cyan">Is this the bit where someone is outside the headquarters(a guard), and he directs you to see Duke Eltan??</font>

Go upstairs of the flaming fist headquarters, and you'll find scar waiting to introduce you to the Duke

Where are my manners? Welcome Paladinknight14! If you need anymore help, Ironworks can help you out