It's 1914 and the coal town of Lithgow is booming. Daniel Ackerman is a serious young man, a miner, a socialist and German; Francine Connolly is the bourgeois, Irish-Catholic, too-good-for-this-place daughter of one of the mine owners. When a tragic accident forces them together, this class-crossed pair fall in love despite themselves. Before the signatures on their marriage certificate are dry, though, war erupts, and a much more terrifying obstacle confronts them. Against his principles but driven by a sense of solidarity, Daniel enlists; Francine, horrified, has no choice but to watch him go. Thrown into a daunting new world of separation and grief, they learn things about each other they might never have known in more certain times - hard lessons about heroism, sacrifice, and the thin line between bravery and stupidity. Told with freshness, verve and wit, Black Diamonds is the tale of a fierce young nation, Australia, and two fierce hearts who dare to discover what courage really means.