Sara Lily Potter (Harry Potter)

What if Harry had a twin sister who Lily had not protected from Voldemort. What if she survived, too. Except she was raised by Severus Snape, and she was raised not knowing who her parents where or that she had a twin brother. Only that her parents where murdered by Voldemort and she was taken in by Snape. This story is about her years at Hogwart. What house will she be in? Does she date anyone? Will she ever find out that Harry is her brother? Read and find out!