How to complete the game
To get all the pieces of the map and complete the game you must complete all the stories of the survivors.
The last complete that will certainly be the doctor who will give you the piece of the map that you are missing.
The other pieces are on them, except one that will give you the chef or student at the end of their history.
Vai then on the area of observation of the temple and find the option tuffarti at sea, where there's a pirate ship to return home.