Pirates go on quests across the sea for their treasure, if you want Treasures you to will have to embark on fun Quests across the map. To find out what these Quests are simply tap on the Purple Pirate book on the right-hand side of you map screen. Here you will see a list of Quests that will each offer a reward. Upon completing any of these Quests, you will be able to collect your Treasures from the same Purple book. Enjoy your loot!