The Black Widow's Prey - N. S. Wikarski - Bog

To solve baffling crimes in turn-of-the-century Chicago, you only need to know a single fact. Bygone sins in the White City cast the longest shadows.
GILDED AGE CHICAGO MYSTERIES
Gilded Age Chicago is the fastest growing metropolis in America, rivaling New York as the City of the Century. This melting pot of thieves and corrupt politicians, robber barons and immigrants, is rife with scandal and social injustice. An eccentric heiress and a star reporter find themselves repeatedly drawn into the hidden world of intrigue and murder that lurks within the shadows of the White City.
Volume Three - The Black Widow's Prey - ARKANA SERIES CROSSOVER
Consulting detectives Evangeline LeClair and Freddie Simpson face their most challenging case yet when a priceless Egyptian artifact is stolen from a Chicago museum. To make matters worse, the museum's richest patron is robbed of a diamond necklace shortly afterward. Suspicion immediately falls on a wealthy widow and her scheming son. Trapped in their clutches is the widow's hapless daughter, about to be forced into a marriage of convenience against her will. The investigation is complicated by two mysterious strangers who have also taken an interest in the missing Egyptian relic. Solving both thefts will lead Freddie and Evangeline down some strange avenues of inquiry involving secret societies, international criminal masterminds, gentlemen jewel thieves, unexpected ocean voyages, and underworld kingpins. The two sleuths must either solve their case or join the ranks of fatalities numbered among THE BLACK WIDOW'S PREY.