Harry Potter and The Mourning Witch

After a few years of training and hunting down the remnants of Voldemort's Death Eaters, the Wizard-Who-Won, youngest Auror in the corps, is send back to Britain to face a new challenge. A rising wave of violence threatens the peace once again as Anti-Pureblood sentiment reaches an all-time high, and Harry struggles to keep the peace. And this time, he's got so much more to lose.