Get a Shiny Knife from "Silvermoon" Harry and capture a Scalawag Frog. Bring these to Zeh'Gehn at Scalawag Point.
Some of the pirates around here... we have our own special way of talking. Zeh'gehn has... many different special ways of talking... all mixed together.
From what I can tell he wants a frog and a knife.
"Silvermoon" Harry might have a knife on the cheap. There's frogs all over town, just grab one and bring it to him along with the knife.
I'd hate to be in the poor critter's shoes, if you know what I mean.