Mason:
I am no longer strong enough to even lift up a simple spear. But my hatred and will to seek revenge for those who killed my family is burning like mad. I beg you. Please seek revenge for me. When you bring me back 10 heads of the bloody X bodyguards then I'll be able to die in peace.
Those Ol Mahums are staying in the northern part of Oren. You will be able to find their army post when you move farther north from the Corridor of Death of Kiran.