Holly Potter and the Philosopher's Stone

Everyone knows the story of Harry Potter. But not many know of his twin sister, Holly. Separated on the night of their parent's deaths, Harry and Holly had quite different upbringings. Harry Potter had no idea how famous he and Holly were. Holly Potter did. Harry was raised by his magic fearing-aunt and uncle. Holly was raised by a family of wizards who took her in and taught her how to control her powers. And Harry was never told that he, his sister, or their parents, were wizards. Holly was told from the start that she was magic, and barley a detail about her parents was left out when told to her.
But everything seems to change when Harry and Holly are reunited when they're both summoned to start their schooling at the famous Hogwarts. While Harry discovers things about his and Holly's illustrious birthrights, that Holly, seemed common knowledge, Holly will uncover what's it's like to live in the opposite world Harry comes from. Harry and Holly both soon find themselves drawn deep inside, not only a mystical world Harry never knew existed, but closer to a noble destiny neither twin could have ever imagined.