Nightmares Under The Dark Moon

Five years after the war, on a stormy night, both Hermione and Draco experience a set of nightmares at the same time, making them feel restless. The Golden Trio was to be killed by a masked man with a dark cloak and then the world would become a place of chaos. Who is the masked man and what's his purpose? They need to find the answer before it's too late. Dramione.