Fanged skeleton

The demons of the Fade are jealous of the world they sense from across the Veil. They constantly push agains the boundaries of the Fade, and when they finally cross over, they attempt to possess the first thing they encounter. Since the Veil is weakest in places where many lives have been lost, demons commonly end up possessing the bodies of the recently dead. A skeleton is exactly that: a demon that has possessed and animated a pile of bones, driven insane once it has realized it is trapped within a body that can only barely sustain it.