A Hollow could be anyone you meet, or anything you encounter. Cabals of less-than-moral wizards have mastered the art of possession to such degree that they can remotely animate, and act through, physical shells. These shells feel no pain, and are animated independent of human construction. Tear off a Hollow's head, and it still comes. Remove its legs, and it crawls. They will not stop until their masters, far away, are satisfied. Instinct: to manipulate and impersonate

• persevere through death
• Channel the fury of undeath
• Inspire corpses