Harry and Titania Snape

Instead of Harry being a Potter, he is born to Lilly and Severus Snape, and he has a twin sister whom is the chosen one to defeat Lord Voldemort. After Lily and Severus are killed on All Hallows Eve, Harry and Titaina are sent to live with their Aunt Petunia and Uncle Vernon. However, that idea is soon squashed by Minerva. [Snape/Lily parents] Professor Potter, Professor Black