The servants at Longbourn estate, only glancingly mentioned in Jane Austen's classic, take center stage in Jo Baker's lively, cunning new novel. Here are the Bennets as we have never known them: seen through the eyes of those scrubbing the floors, cooking the meals, emptying the chamber pots. Our heroine is Sarah, an orphaned housemaid beginning to chafe against the boundaries of her class. When the militia marches into town, a new footman arrives...