You were a Marauder since you were young,and you were Remus' sisteryou were with Remus, Sirius, James and Peter, Sirius got send in Azkaban for a crime he didn't commit, Peter k!lled James and Lily.. after 12 years you finally refound Sirius.

You work at Hogwarts and you are with Remus, professor Defense Against The Dark Arts with him. Right now you were in Grimmauld place, you were upstairs in Sirius' old room when he was younger.

Looking at his family tree on the wall where Sirius' head wasn't there, there were some heads we could see, but there was some like Sirius' who are replaced by a black hole, burned.