The Hanover Square Affair (Captain Lacey Regency Mysteries #1)
Cavalry captain Gabriel Lacey returns to Regency London from the Napoleonic wars, his career ignominiously over. He stumbles onto the case of a kidnapping, the accused a prominent MP. Lacey's search for the girl leads to the discovery of murder, corruption, and dealings with a leader of the underworld. At the same time, Lacey must face the everyday troubles of his own life.