A call for help on a matter of law turns into a treacherous case of investigative work in 1890 New York.
Prudence MacKenzie and her partner, former Pinkerton agent Geoffrey Hunter, have formed an investigative law firm in New York City. A note from Prudence’s aunt, Lady Rotherton, sends the pair to Niagara Falls to help a friend of hers. Although the falls were made a state park in 1885, factories still mar the landscape five years later, and big money is sniffing around the possibilities for hydroelectric power. Lady Rotherton’s friend Lady Ernestine Hamilton, who lives on the Canadian side, is trying to protect a 17-year-old girl named Rowan Adderly, whose rapacious grandmother was horrified when her son married a beautiful Irish singer. Now Rowan, the couple’s daughter, is set to inherit a large fortune. When both her parents were presumed dead, Rowan was removed from boarding school and put into service. Now she’s hiding in a cabin in the woods with a blind man and his protective dog while her grandmother tries to have her declared illegitimate. Prudence and Geoffrey soon become involved in the hoopla surrounding the falls, led by Crazy Louie Whiting, who’s constantly building barrels in an attempt to successfully send a human over the falls. When the body of odd jobber Martin Fallow is found in a barrel supposedly containing a sheep, his death turns out to be murder. Losing no time, the sleuthing couple send for their secretary, Josiah Gregory, to investigate any relevant paperwork about the Adderlys and for tough and clever Amos Lang, another former Pinkerton, who gets a job with Crazy Louie. The shocking truth they uncover puts everyone involved in great danger.
Historical descriptions of Niagara Falls are a bigger treat than a mystery replete with dead ends.