The Unbreakable Vow

Hermione Granger returns to Hogwarts for her eighth year without Harry or Ron. She's surprised to find Draco Malfoy attending the school after all that had happened. McGonagall, the new Headmistress, has expressed her grievances to both students and is willing to make as many Unbreakable Vows as it takes to pull the school together in unity and save it from shutting down for good.