Rigel Crouch and the Prisoner of Azkaban

No one ever really noticed Rigel Black, mostly because she was known to the wizarding world as Rigel Crouch. A pureblood girl with an over baring grandfather and godmother. But her name was a lie and it was only a matter of time before people found out the truth. That her father was a death eater, she was the heir to the Black fortune and it was her uncle who escaped Azkaban.