This quest is given by the Nomarch in the Final Dominion. Click on "Slay the Shadow Cat" to get the following information about the quest: The bulbous merchant steps forward. "My explorers bring me terrifying tales of a evil monster lurking in the Western Jungle. They say it is a great cat made of shadowy darkness. It has already brutally murdered several of my servants. Kill this inconvenience and you will be compensated"