Thornhill Family Books in Order

The Thornhill Family books are three linked historical novels set around the early colonial years of New South Wales. They share characters, family lines, and moral territory, but they are not simple sequel-after-sequel books. Each one looks at settlement from a different distance. Taken together, they build a broad, uneasy picture of land hunger, cross-cultural encounter, family silence, and the long shadow of violence.

The country itself is never just background.

The Secret River is the anchor. William Thornhill, a Thames boatman turned convict, is transported to Australia and eventually stakes his future on land beside the Hawkesbury River. Grenville keeps the scale intimate, with a marriage, children, neighbours, and one man's hunger to be secure, but the historical pressure is immense. As settlers fence, farm, and claim what was never theirs to claim, the novel becomes a hard look at possession, fear, and moral compromise.

The Lieutenant steps back to the earlier world of 1788 and offers a kind of mirror-image to The Secret River. Its central figure is Daniel Rooke, a shy soldier and astronomer inspired by William Dawes, who forms a friendship with a young Gadigal girl named Tagaran. Where The Secret River is about a conversation that never really happens, this book is about two people who do find a way to speak across difference. That makes it quieter in tone, but no less tense in its moral stakes.

Sarah Thornhill carries the consequences into the next generation. Sarah is William Thornhill's youngest daughter, raised in relative comfort but inside a family that has trained itself not to look back. When buried secrets surface, the book turns into a story about inheritance, love, and the cost of not knowing where your comforts came from. It can stand alone, but it lands hardest when read after the earlier books.

Silence is one of the main forces in this series.

What makes these novels memorable is the way Grenville avoids easy certainty. She is interested in frontier history, but she tells it through households, friendships, marriages, and the words people can or cannot say aloud. The tone is serious, reflective, and often tense rather than action-driven, so the pull comes from character, conscience, and consequence. If you want the clearest path in, read The Secret River first, then The Lieutenant, then Sarah Thornhill. Read together, the books move from first contact, to settlement, to inheritance, and show how the past keeps working on the lives that come after it.