Murder on Bank Street (Gaslight Mystery Series #10) in Bloomington, MN

In the four years since her husband's death, midwife Sarah Brandt has become an angel of mercy in the tenements of turn-of-the-century New York. Now, Detective Sergeant Frank Malloy has taken up the task of solving the murder of Dr. Tom Brandt. But the shocking revelation he discovers may destroy Sarah-and Malloy's hopes for any future with her.