Shanghaied: Body and Bone

What would it take for a person to leave the embrace of normal society and become a pirate?

In the South Pacific Ocean is an island nation, civilized with steel, steam, and the madness of inventors. And Kincade is missing! His sister and friends must find out what has happened to him. They will travel the steampunk south pacific, surrounded by storms,  marauders, and madmen. Can they rescue him before it is too late?