Blood Traitors {a Harry Potter Fanfiction}

They say that not one Slytherin fought in The Battle of Hogwarts. Not only that - they say that they hid like the cowards the rest of the school thought them to be. But sometimes things get mixed up; sometimes people mix things up on purpose, and sometimes, they just don't understand. There were blood traitors at The Battle of Hogwarts: they fought and died alongside every other house, and it's time they were recognised for it. This is the story of how those cunning folk who'll use any means to achieve their ends helped save the wizarding world.