|Shark Fin Souffle|
|small leather bag|
a small lab flask
Tilzak N'Lim in Sunken City will reward you with 20 Shark Skin Souffles in exchange for a Meaty Shark Fin, which he needs for one of his exotic soups.
Meaty Shark Fins can be found on Dusk Sharks in the Sunken City. It is an uncommon drop which will auto-appear in your inventory if you get it. The sharks can be found in the water near the docks in Sunken City.
Return to Tilzak N'Lim for your choice of rewards.