Sharkfather is a shark that has been in jail for coral smuggling.
After he was released, he went to live in Abyss and has a craving for Shark-o-Bell food.
You can ask Sharkfather a favor every 360 minutes after starting the quest.
He will ask you for a food-item, always from Shark-o-Bell. After bringing this, you will asked a question.
The answer to this question can be found in one of the stories from the PF Library.
Note: You have to own property in one of the PF cities to have access to the PF Library.
If answered correctly, Sharkfather will reward you with one of the following: