In nineteenth-century Philadelphia, a case of arson turns lethal-but who was the perpetrator and what was the motive? While Thomas Kelman, Martha Beale's beau, investigates the blaze, her adoptive daughter, Ella, is abducted. Then another fire destroys the home of industrialist Darius Rause, killing his adulterous wife. Is there a connection between the crimes? Martha and Kelman work to find an answer as they fight to rescue Ella before she also perishes, in this fast-paced historical crime novel in which duplicity reigns and the destinies of rich and poor collide.