Spirits who are never seen by those that have a clean conscience and emerge at midnight. They have many different forms. Sometimes they are seen as frogs, other times a beautiful woman and at other times they are a black horse. They enter into people's houses to haunt them. Those who have done good deeds in life have nothing to fear. It is those who have done wrong in life who should watch out as the Adh Seid causes them to loose their sanity.