London at the dawn of the 19th century. After the unexpected death of William Flint, the warden of the Norton-Folgate district, his wife Ada is left a widow with many children. Out of compassion, she is assigned the post of an investigator for the city council—work that is heavy and joyless, but Ada tries to serve honestly. When the body of an eight-year-old girl is found in an abandoned stable, Ada decides, at any cost, to find out who the dead girl was and who her relatives are. But questions only multiply; the investigation time and again runs into dead ends, and Ada has to seek support from an old friend—artist Raphael da Silva. The refined stylization by Tessa Morris-Suzuki transports the reader to a shadowy Georgian London, where love coexists with madness, and happiness with trouble.