Brigand King Compasses are a type of expedition map, and can be purchased from explorers' halls, or found in black boxes. The prices of these compasses vary, depending on the Brigand King in question, and how long the chart has been in the hall. A newly stocked chart will always be the most expensive, and gradually decrease in price the longer it is at the hall. When the chart's price decreases below a certain value (usually 1,000 PoE less than the starting price), and has not yet been bought by a pirate, the chart will disappear from the Hall altogether. Placing a Brigand King Compass on a vessel's charting table will trigger an expedition for the particular Brigand King. If the battle is won or lost, the compass will disappear; however, if either ship disengages, the compass will not be