if you get the quest, 'Cuergo's Gold' (obtainable from all 3 pieces of a map, which starts a quest), and you go to the area is which you kill the pirates for a key, KEEP THIS QUEST. each pirate has a high chance to drop Volatile Rum, and this drink is necessary for Alchemists and Engineers alike, which means you can make a killing off of selling this booze to people.