The Slytherin Beauty

This is the story of Hermione Gaunt. On her eighteenth birthday she is rooting through her attic, when she finds a birth certificate stating that she is in fact a Gaunt, not Granger. She begins to turn against the muggles and everything she fought for in the Second War. She entrusts her old enemies, the Malfoy's, to help her continue her great-uncle Voldemort's plans. She also finds out her real mother is alive and looking for her.