A single crew member from a new civilization above the known lands. A man on a quest to build up his failed life on the main land, giving it a second shot in the skys. Tried to make it but failed again, so only thing left was join the pirates to make something with his life.
He had a chance to take the treasure for himself or share the wealth. He took it, tried to escape but failed. Now also hated with by the pirates. He escaped to spare his life and now he is on the ruined lands. You are the last one who can give him the long waited wealth, or make him continue his life on the bottom of life.