Betrayer's Bane

The dwarf-ruins of Sarnúr have been discovered and occupied by the Dourhands, who plan to use them as a base from which to strike at the Longbeards -- worse yet, they have allied themselves with evil and corrupted creatures who owe their true allegiance to the powers of Angmar. You must take your battle against the Dourhands onto the crumbling streets of Sarnúr before they build their strength and are bolstered further by forces sent from Angmar.