Work Text:
This curse afflicts all descendants of Constance Kaiser.
The madness sets in later in life, starting with the appearance of one of the following:
-A bloody Iron Cross (Kaisers)
-A black eagle making a nest in or around your home (Adlers)
-A lance or other large weapon, often bearing a cross (Meinrads)
If you are descended from one of these 3 main families, PRAY. PRAY THAT YOU ARE MORE HUMAN THAN MONSTER. If you are directly IN one of these families, it is too late. All you can do is warn those who hold any importance to you and fight it off for as long as you can.
Good Luck.