The Secret River - Kate Grenville

A London waterman, William Thornhill, is deported to Australia with his wife and child, who he loves dearly.

There are matter of fact descriptions of lives ruled by poverty in both countries, and of what people will do to carry on living, England too had a kind of caste system.
Slowly, William makes a place for himself, but the new migrants and the aborigines have different ideas on how to live life and eventually Wiliam has to make a decision.

A thought provoking book, which shows that you can never say 'I would never do that'