There are 7 books in the Kopp Sisters series. The newest book is Miss Kopp Investigates which came out in 2021.

From the New York Times best-selling author of The Drunken Botanist comes an enthralling novel based on the forgotten, true story of one of the US's first female deputy sheriffs.

Constance Kopp doesn't quite fit the mould. She towers over most men, has no interest in marriage or domestic affairs,…
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2
Lady Cop Makes Trouble

Book cover of Lady Cop Makes Trouble
Constance Kopp, one of the nation's first female deputy sheriffs, fights back when her position is threatened by a German con man.

3
Miss Kopp's Midnight Confessions

Book cover of Miss Kopp's Midnight Confessions
The bestselling author of Girl Waits with Gun brings the real-life escapades of the famous crime-fighting Kopp sisters to life in this extraordinary novel that is "perfect for book groups" (Booklist). Deputy sheriff Constance Kopp stands up to the “morality” laws of 1916, defending the independent young women in her…

4
Miss Kopp Just Won't Quit

Book cover of Miss Kopp Just Won't Quit

Constance Kopp, America's first female deputy sheriff, is back in another unforgettable romp by HWA-longlisted international bestseller Amy Stewart.

While transporting a woman to an insane asylum, Deputy Kopp discovers something deeply troubling about her story. Before she can investigate, another inmate breaks free and tries to escape.

In both…

5
Kopp Sisters On The March

Book cover of Kopp Sisters On The March

The fearless Kopp sisters are back in another unforgettable romp by HWA-longlisted international bestseller Amy Stewart.

It's 1917, and the US Army is marching to join its allies in the First World War. Constance Kopp and her sisters may not be soldiers, but that doesn't mean they can't do their…

6
Dear Miss Kopp

Book cover of Dear Miss Kopp
Split apart by the war effort, the indomitable Kopp sisters take on saboteurs and spies and stand up to the Army brass as they face the possibility that their life back home will never be the same.

The U.S. has finally entered World War I. Constance, the oldest of the…

7
Miss Kopp Investigates

Book cover of Miss Kopp Investigates
Life after the war takes an unexpected turn for the Kopp sisters, but soon enough, they are putting their unique detective skills to use in new and daring ways. 

Winter 1919: Norma is summoned home from France, Constance is called back from Washington, and Fleurette puts her own plans on…