After its metamorphosis, a lich often finds some quiet place to dwell, typically protected by a variety of guardians and traps, for two primary purposes. First, a lich requires solitude in order to plan its elaborate schemes, and second, few mortals (if any) deign to interact with these legendarily corrupt necromancers. One reason begets the other, as the self-imposed isolation of a lich often drives the lich insane, further solidifying its separation from civilization. The longer a lich lives, the more meticulous a planner it becomes, secreting itself within a labyrinth of deadly puzzles, misdirection, and monsters. A lich's servants and guardians are absolutely loyal, either due to their nature (such as constructs or other undead) or as a result of compulsion using powerful magic. Many liches go mad, in time, and the nature of a lich's lair is a good indicator of the undead's current mental state.