The Noble and Most Ancient House of Black--The Forgotten Sister

Years ago when hearing the family name "Black" you'd think of power, riches, pure-bloods, and elegance. You'd picture things only the finest and richest people could have. Now, when hearing the family name "Black" you may still think of power but you'd also think of evil, insanity, and death. How it got this way no one knows. Not truly, not really, the only person who knows the full story has been basically wiped from existence, living an entirely different life than the one they grew up with.

(technically/obviously not the FULL full story. They have a lot of COMPLICATED family history that I haven't researched nor do I understand. Also this is a fan fiction so don't hate me if everything is not entirely accurate, especially since I will be changing some things like the ages of specific characters)