Murder on Black Friday: Nell Sweeney Mystery Series, Book 4 (Unabridged‪)‬

On Sept. 29, 1869, the gold market crumbles, and fortunes are lost in a matter of hours. When the bodies of two men, wealthy Boston Brahmins Noah Bassett and Philip Munro, are found, it's assumed that they committed suicide over their financial losses.

When Harvard professor and forensic scientist Will Hewitt autopsies the victims, he discovers that Munro was murdered. Dr. Hewitt needs help navigating the city and its complex society to find the killer. He turns to governess Nell Sweeney, who understands the world of the rich and how their power can be used to hide their secrets. The investigation leads to the conclusion that these men were concerned more with keeping some things hidden than with the loss of their money. How they were tied together makes for a chilling climax to a mesmerizing mystery.