Smash 10 Thundermar Ale Kegs within the Thundermar Ruins.
Many of the Wildhammer have already fled their homes. It is time to wipe them from the map.
Up on the ridge to the north you will find abandoned houses in the Thundermar Ruins. Kegs of potent Thundermar ale have been left behind.
Thundermar ale is 220 proof; I don't know how that's possible.
Smash open the kegs and set their content aflame. Burn them out! Leave the dwarves nothing to return to!