Murder at the breakers / Alyssa Maxwell.

Enhanced descriptions from Syndetics:

For fans of HBO's The Gilded Age , explore the dark side of the alluring world of America's 19th century elite in this gripping series of riveting mysteries...

As the nineteenth century comes to a close, the illustrious Vanderbilt family dominates Newport, Rhode Island, high society. But when murder darkens a glittering affair at the Vanderbilt summer home, reporter Emma Cross learns that sometimes the actions of the cream of society can curdle one's blood. . .

Newport, Rhode Island, August 1895- She may be a less well-heeled relation, but as second cousin to millionaire patriarch Cornelius Vanderbilt, twenty-one-year-old Emma Cross is on the guest list for a grand ball at the Breakers, the Vanderbilts' summer home. She also has a job to do--report on the event for the society page of the Newport Observer.

But Emma observes much more than glitz and gaiety when she witnesses a murder. The victim is Cornelius Vanderbilt's financial secretary, who plunges off a balcony faster than falling stock prices. Emma's black sheep brother Brady is found in Cornelius's bedroom passed out next to a bottle of bourbon and stolen plans for a new railroad line. Brady has barely come to before the police have arrested him for the murder. But Emma is sure someone is trying to railroad her brother and resolves to find the real killer at any cost. . .