Order Matters

"Sirius frowned. There was something unexpectedly discomforting about having a man he so much hated at his mercy like this. He let out a long sigh. He'd been wrong — It wasn't a shitty evening; it was the epitome of shittiness in every imaginable way." Or: Severus Snape becomes an Order member in the First Wizarding War, and things turn out a bit different. Marauders Era.