Mignon Good Eberhart (July 6, 1899, Lincoln, Nebraska – October 8, 1996, Greenwich, Connecticut) was an American author of mystery novels. She had one of the longest careers (from the 1920s to the 1980s) among major American mystery writers.

Mignonette Good was born in July 6, 1899, in Lincoln, Nebraska. ^[7] As a teenager, Good often writes short stories and novels to occupy herself. ^[8] From 1917 to 1920, she attended Nebraska Wesleyan University, but she did not complete the course work for a degree. ^[9] In 1923, she married Alanson Clyde Eberhart, ^[8] and began writing short stories to combat boredom. Within several years, she had begun writing novels. ^[9] In 1929, she published her first novel, The Patient in Room 18, which introduced her series character Nurse Sarah Keate and her boyfriend Detective Lance O'Leary. ^[8] Her second novel, While the Patient Slept, received the $5000 Scotland Yard Prize in 1931. Four years later, her alma mater presented her with an honorary doctorate degree. ^[9]

By the end of the 1930s, Eberhart had become the leading female crime novelist in the United States and was one of the highest-paid female crime novelists in the world, next to Agatha Christie.

She was one of the first of many writers called, by their publishers, "America's Agatha Christie," few of which had as little in common with 'Dame Agatha in matters of plotting, characterization, or even type of story.'^[2] She wrote a total of 59 novels, the last published in 1988, shortly before her 89th birthday.

^[9] Eight of her novels were adapted as movies, beginning in 1935 with While the Patient Slept. The last adaptation, based on the book Hasty Wedding, was the movie Three's a Crowd , released in 1945. ^[3]

Sarah Keate, who made her debut in Eberhart's first book, proved to be the author's only series sleuth, and made only a couple of appearances after the early 1930s.

Eberhart wrote mostly "standalone" mysteries, something fairly unusual for a mystery writer with such a large output.

Eberhart was one of the more prolific of the practitioners of the classic romantic suspense novel that had begun with some of the earliest work of Anna Katherine Green and was brought to its height by Mary Roberts Rinehart in the early 20th century. ^[2] There had been many female sleuths featured in short stories previously, and Rinehart had introduced her own nurse-detective, Hilda Adams, aka "Miss Pinkerton," in the second decade of the 20th century. But in 1929, when Eberhart introduced Sally Keate, it was still relatively rare to have a female lead in novel-length "straight detective stories". The year after Eberhart's first novel was published, Agatha Christie wrote the first novel featuring her female detective, Jane Marple, who had previously appeared in short stories collected as "The Tuesday Club Murders". ^[4]

Eberhart's works often featured female protagonists, and tended to include exotic locations, wealthy characters, and suspense and romance.

^[9] Her characterization is good, and her characters always have "genuine and believable motives for everything they do."

Her "writing is spare but almost lyrical."

^[2]

The normally prolific Eberhart wrote relatively few books in the 1940s, possibly due to upheaval in her personal life.

^[3] After 20 years of marriage, she divorced Alanson Eberhart, and in 1946 married John Hazen Perry.

^[9] But within two years, she had divorced Perry and remarried Eberhart.

^[2] The Eberharts remained married until his death in 1974.

In 1971, she was awarded the Mystery Writers of America's Grand Master Award. Eberhart also served as president of the Mystery Writers of America. ^[8] In 1994, she received the Agatha Award : Malice Domestic Award for Lifetime Achievement.

Eberhart died in 1996. She is buried at Long Island National Cemetery, a Veterans Administration burial site, beside husband Alanson Eberhart, who had served as a Navy lieutenant commander in World War II.

In 2007, a posthumous collection of her short stories, Dead Yesterday and Other Stories, was edited by Rick Cypert and Kirby McCauley, and published by Crippen & Landru.