Khaela Mensha

I heard even Malekith bid you visit him for an audience. Is that true? Either way, you've done right by me before, but I have a new challenge for you. It's time we honor Khaine, the Lord of Murder, with more sacrifices. There's no better target than Khorne, false god of War that those humans worship - defeating his Champion will send the perfect message! If you're worthy of the Gold Aspis, return to me alive. And if you die, well... you weren't worthy at all!

Travel to the Bastion Stair and defeat Skull Lord Var'ithrok. Then defeat him again, just to prove a point.