Appearently you can just give Punwell the Zuly if you got a spare 100.000 but it should give you some Zuly when you go in the area of those ruins that are in the water.
There you should find 3 mounds of dirt. There are turtles and Beetles around so be carful.
Buuut.. it is a Quest not listed up, starting in Breezy hills and probably broken because i am stuck on it as well.