You go back and just talk to her.
you give it to the mermaid girl in molida island
To her sister the "Mermaid"!
if you've done the mermaid sidequest on the old wayfarer's island, bring the letter to the mermaid, and she'll give you a wisdom gem.
Go to the isle North East of the isle of gust and run about for a bit soon you should see a Mermaid whack her with your boomerang she'll say somert then go to the old wafarer and he'll say somert then see Linebeck and then go back to the old wafarers house she'll be in there coz the mermaid is jolenes sister
You should get a letter Eddo and he will tell you to go to him to get a salvage arm
phantom poltergeist
ariel...of the little mermaid ariel..of the little mermaid
at the bottom of the sea there is treasure. soon you'll get a message or letter in the mail from edo on cannon isle. he will tell you that you can get a savage arm and then you can go buy it from him with i think 500 rubes. then when you go sail to one of the x's on the map, linebeck will tell you what to do.
conscience
Ursula from The Little Mermaid
Phantom Stranger
Hourglass Cosmetics (Venice, CA)