Winter 1919: Norma is summoned home from France, Constance is called back from Washington, and Fleurette puts her own plans on hold as the sisters rally around their recently widowed sister-in-law and her children. How are four women going to support themselves? A chance encounter offers Fleurette a solution: clandestine legal work for a former colleague of Constance’s. She becomes a “professional co-respondent,” posing as the “other woman” in divorce cases so that photographs can be entered as evidence to procure a divorce. One client’s suspicious behavior leads Fleurette to uncover a much larger crime, putting her in the unlikely position of amateur detective. 

The U.S. has finally entered World War I. Constance is chasing down suspected German saboteurs and spies for the Bureau of Investigation, while Fleurette is traveling across the country entertaining troops with song and dance. Meanwhile, at an undisclosed location in France, Norma is overseeing her thwarted pigeon project for the Army Signal Corps. When Aggie, a nurse at the American field hospital, is accused of stealing essential medical supplies, the intrepid Norma is on the case to find the true culprit. The far-flung sisters --- separated for the first time in their lives --- correspond with news of their days. The world has irrevocably changed. Will they be content to return to the New Jersey farm when the war is over?

It’s the spring of 1917, and change is in the air. American women have done something remarkable: they’ve banded together to create military-style training camps for women who want to serve. These so-called National Service Schools prove irresistible to the Kopp sisters, who leave their farm in New Jersey to join up. When an accident befalls the matron, Constance reluctantly agrees to oversee the camp --- much to the alarm of the Kopps’ tent-mate, the real-life Beulah Binford, who is seeking refuge from her own scandalous past under the cover of a false identity. Will she be denied a second chance? And after notoriety, can a woman’s life ever be her own again?

After a year on the job, New Jersey’s first female deputy sheriff has collared criminals, demanded justice for wronged women, and gained notoriety nationwide for her exploits. But on one stormy night, everything falls apart. While transporting a woman to an insane asylum, Deputy Kopp discovers something deeply troubling about her story. Before she can investigate, another inmate bound for the asylum breaks free and tries to escape. In both cases, Constance runs instinctively toward justice. But the fall of 1916 is a high-stakes election year, and any move she makes could jeopardize Sheriff Heath’s future --- and her own. Although Constance is not on the ballot, her controversial career makes her the target of political attacks.

Constance Kopp is back --- with a badge and a taste for justice. She has finally earned her deputy sheriff’s badge and is ready to tackle a new kind of case: defending independent young women brought into the Hackensack jail on dubious charges of waywardness, incorrigibility and moral depravity. Such were the laws --- and morals --- of 1916. Constance uses her authority as deputy sheriff, and occasionally exceeds it, to investigate and support these women when no one else will. But it’s her sister Fleurette --- who runs away from their sleepy farm to join the glamorous world of vaudeville --- who puts Constance’s beliefs to the test. Is there a wayward girl in her own family?

After besting (and arresting) a ruthless silk factory owner and his gang of thugs in GIRL WAITS WITH GUN, Constance Kopp became one of the nation’s first deputy sheriffs. But when the wiles of a German-speaking con man threaten her position and her hopes for this new life, and endanger the honorable Sheriff Heath, Constance may not be able to make things right. LADY COP MAKES TROUBLE sets Constance loose on the streets of New York City and New Jersey --- tracking down victims, trailing leads, and making friends with female reporters and lawyers at a hotel for women. Cheering her on, and goading her, are her sisters Norma and Fleurette.

Constance Kopp towers over most men, has no interest in marriage or domestic affairs, and has been isolated from the world since a family secret sent her and her sisters into hiding 15 years ago. One day, a belligerent and powerful silk factory owner runs down their buggy, and a dispute over damages turns into a war of bricks, bullets and threats as he unleashes his gang on their family farm. When the sheriff enlists her help in convicting the men, Constance is forced to confront her past and defend her family --- and she does it in a way that few women of 1914 would have dared.