History is the vehicle for most of Barry Unsworth’s novels, but he never lets the vehicle preempt the passengers. It is for their sake that he provides it; to display and explore their complexities as if only in movement might a character’s concealing pleats unfurl. In “Losing Nelson,’’ the charting of the admiral’s battles serves to illuminate the wondrously kinky landscape of the hobbyist who charts them. In “The Songs of the Kings,’’ the Trojan War is a tragicomic ring for a circus of Greek dolts and schemers, as well as a beautifully inflected satire on our contemporary politics.
There is a lot of history and some shrewd contemporary allusions in “The Quality of Mercy,’’ a sequel of sorts, though briefer and more pungent, to the slave trading epic “Sacred Hunger,’’ written 19 years ago. It is not one but three stories, eventually converging; but through all of them it is not what the figures do - a lot - but who they are that holds us; particularly since they don’t stay fixed. In grammatical terms, Unsworth’s people go from indicative to subjunctive.
