Undead are a bane to any community, if the smell doesn't get you, their bites will if they crave the flesh. There are degrees of undead that walk the earth, some greater, stronger, easier to blend in with society while others are rotting walking corpses or even phantoms that one has to second guess if they saw or not. Undead however never die once they have championed over their initial death by whatever means of their own doing or forced by another's hand. They do lose feeling though along with smell, taste and other luxuries of the living as time wears on, their reflexes slowed and they will deteriorate if life forces are not maintained by draining the living of energy or blood. There is but one way to dispose of an undead and that is by fire as fire incinerates their being to ash if they can not put themselves out in time.