Kate Grenville takes us back to the early Australia of The Secret River and the Thornhill family. This is Sarah's story. It's a story of love lost and found, tangled histories and how it matters to keep stories alive. SARAH THORNHILL is the youngest child of William Thornhill, convict-turned-landowner on the Hawkesbury River. Her stepmother calls her willful, but handsome Jack Langland loves her and she loves him. Me and Jack, she thinks, how could it go wrong? But there's an ugly secret in Sarah's family.