Void leech

The void leech is a new form of pest that the player is sent to track along with Commander Korasi and Jessika. The black knight's are using it's "leeching" power of the substance that it leaves behind as it burrows as a method to take over Falador, by using Ali Tist to sell boxes full of the goo the void leech leaves behind, that are unopenable and made of waxwood (a waterproof, ugly type of wood). The player receives the option to set the void leech free (where it will live out the remainder of it's days away from people, in a remote location, or put it down.