According to the Deathguard, another one of those foolish Dwarven Mountaineers has just been captured. The Deathguard likes to use the cellar of the Gallows End Tavern as a holding cell until prisoners can be "properly" dealt with.
Why don't you go see how the Captured Mountaineer enjoys this special drink I made for him? It contains a subtle hint of what The Dark Lady has planned for the rest of Azeroth.