what is the nature of the werewolf

The nature of the werewolf is evil.

The Were-Wolf is a fearsome beast. He lurks within the thick forest, mad and horrible to see. All the evil that he may, he does. He goeth to and fro, about the solitary place, seeking man, in order to devour him. Hearken, now, to the adventure of the Were-Wolf, that I have to tell.