What to do: Talk to Gumbah (Bastok Mines J-7)get the quest. Then go to 3rd floor of Palbrough Mines (G-8), get on the ship back to town and after the ride in the Zerhaun mines you'll recieve a 2 handed sword. Equip the sword and kill 100 of any type of enemies. After the 100 or more kills goto Beadeaux(Beado) which is located at the Southeast exit of the Pashhow Marshland and you get Dark knight.