Treasure Mushrooms are a special type of stealth enemy unique to Heart of Thorns. They cannot be detected or damaged by players that do not have the Nuhoch Stealth Detection Mastery unlocked. Treasure Mushrooms are the only enemies that drop Invisible Boot Boxes, one of the rarest and most desired items in Guild Wars 2. This guide will show you the location of each Treasure Mushroom in Heart of Thorns.