Undesirables

Every reader wishes they could go back and change something in a story. Be careful what you wish for. When a shadowy society does just that, Sirius's life is saved but at awful cost. Now Voldemort is on the verge of winning, those who stand against him are few and scattered, and a horcrux is just out of reach. In their defense, it sounded like a good idea at the time . . .