A Replay of His Love- a Harry Potter Story

Rose is Harry's sister much to her surprise, and Byran is Severus Snape's long lost son to everyone else s. What else is incredibly interesting is how much Bryan and Rose's relationship is like Lily's and Snape's was, except this time it will be different. Or will it? Will Rose and Bryan's feelings be the same? Or will their relationship end tragically like their parents? On top of it all, they have the Dark Lord to deal with, oh goody.