It's been three years since she lost her sister, Abby, to the Division, and Hettie Alabama has gone rogue. Roaming the West with an outlaw posse, robbing banks and stealing magic, she's broken every rule she once believed in. Nothing matters anymore but finding Abby. Meanwhile, the world is on fire. Hungry for power, the Division leaches magic from the vulnerable, with dire consequences that set Hettie's pursuit of her sister on a collision course with dangerous monsters and even more dangerous men. It's up to Hettie and her cursed revolver, Diablo, to find a way to save the world--or end it.