'When Macha Connor came home from the war she walked into town as naked as the day she was born, except for well-worn and shining boots, a dusty slouch hat, and the .303 rifle she held across her waist.' Macha patrols Siddon Rock by night, watching over the town's inhabitants: Brigid, Granna, and all of the Aberline clan; Alistair in Meakin's Haberdashery, with his fine sense of style; Sybil, scrubbing away at the bloodstains in her father's butcher shop; Reverend Siggy, afraid of the outback landscape and the district's magical saltpans; silent Nell with her wild dogs; publican Marg, always accompanied by a cloud of blue; and the new barman, Kelpie Crush. It is only when refugee Catalin Morgenstern and her young son Josis arrive in town that Macha realises there is nothing she can do to keep the townspeople safe.