The Black Knight Workshop is part of the quest A Void Dance. It is where the Kinshra are manufacturing boxes (made of waxwood), that are full of void goo, from the void leech. The goo drains the energy of anyone near it. These boxes appear to be opened by a puzzle, but the puzzle can not be solved. The Black Knights are using Ali Tist as a vendor for their "goods". He is selling the boxes to people in Falador, which would make the city easy to take for the Black Knights. However, during A Void Dance, the player uncovers this plot with the aid of Commander Korasi and Jessika. Sir Tiffy Cashien is alerted and oversees the destruction of the boxes and the clean up of the mess the Black Knights have caused.