Hermione is in her third year when she uses the time turner but something goes wrong and she ends up at Hogwarts when harry's parents ect. are at school including a certain Severus Snape.

{First book in the Obliviate series} Aurora Oswin expected a normal enough life filled with math problems and daydreams. But then her thirteenth birthday arrives and she not only sets her arch enemy's hair on fire--but she gets an odd letter as well. A man resembling Gandalf tells Aurora the truth--she's a witch! But things grow more complex when she finds out her mother erased her memories, and that she's Harry Potter's twin sister... So Rory heads to Hogwarts with her new found brother and godsister, and begins an incredible journey where she might find everything missing from her life.

Molly was always considered a freak. Strange things happen around her and nobody wants to be her friend. Her whole life will change when she discovers her real name, her biological family, and her true identity. Join Molly and her adventures through Hogwarts. Btw, her real name isn't Molly. Mwuahahahaha!