The Dark Mistress

Lyra Riddle is Lord Voldemort's daughter, she is the heiress to Salazar Slytherin. Oh and she's about to enter her first year at Hogwarts. But can she keep her identity a secret from Dumbledore? And who is Hermione Granger? THIS IS A DARK FIC! Dark!OC, Dark!Hermione, Ron!bashing, Dumbledore!bashing, Order!Bashing!