Murder On Gramercy Park

Description for MURDER ON GRAMERCY PARK by Victoria Thompson:

As a midwife in the turn-of-the-century tenements of New York City, Sarah Brandt has seen her share of suffering and joy, birth and death. Now, she learns that crime doesn't discriminate, when the highest echelons of society are rocked by murder...

At a summons from Detective Sergeant Frank Malloy, Sarah arrives at the elegant home of famed magnetic healer Edmund Blackwell to find his wife in labor--and the good doctor dead from an apparent suicide. Only Malloy sees what no one else wants to: that Blackwell was murdered in his own home...

After a successful delivery, the Blackwell baby falls mysteriously ill. Relying on her nurse's training and woman's intuition, Sarah discovers the source of the baby's sickness--and discovers a scandal that leads Malloy's investigation down a gilded path paved with greed, deception, and desire...

This is #3 in Gaslight Mystery series.