Spanning 60+ years, beginning on the day Waterloo was won, it is a multigenerational story of 3 families during the Industrial Revolution. Lots of detailed descriptions of life among the varied social classes, it has been likened to stories by Dickens. It's a very good historical fiction. A tontine is a life insurance scheme, stratified by age. Enrollees received payouts after an initial growth period, the amounts determined by the number of living recipients. Over time, as participants died, the payouts became more and more substantial. Towards the end, when the recipients became a mere handful, all sorts of betting occurred in the general populace on who would be the last survivor.