How to Get Shadow Harvester Mask in Throne & Liberty You can obtain the Shadow Harvester Mask by defeating the Adentus Guild Boss in Throne & Liberty. This is not a guaranteed drop, you may have to defeat Adentus multiple times to get the item. This item can be crafted at the Senior Armor Crafter in Stonegard Castle, if you have a Precious Lithograph: Shadow Harvester Mask. Item Lithographs are usually purchased at the Auction House.