In 1890, when Agatha Miller was born into a middle-class family in Southern England, no one would have predicted that she would still be remembered today. Not only is she remembered, but her books continue to be sold worldwide and movie and tv adaptations of her works continue to be produced. Many of her fans are looking forward to September 2023 when they will be able to see A Haunting in Venice, Kenneth Branagh’s adaptation of Christie’s Halloween Party, a sequel to Death on the Nile. Who was this woman who holds such a grip on audiences from England to Ethiopia and from North America to Southern Asia?

Agatha’s family was prosperous, but not influential. Her father had been born in the United States but lived much of his life in England. He was not particularly interested in being a businessman and was better at squandering the wealth he had inherited rather than adding to it. Her mother believed that girls did not need much education so she did not encourage Agatha to learn to read. Nonetheless, Agatha was curious about books and with the help of her grandmother, she learned to read by the time she was four years old. Like most middle-class girls at that time, Agatha assumed she would not need to earn a living because she would marry and devote her time to her husband and family. But the world was changing and Agatha’s life did not follow the traditional pattern.

As she grew into her teens, Agatha was given a taste of formal education by attending boarding school in France, but her social life was more important to her than education. She began to attend parties, where she met many young people of her class, notably Archie Christie, a handsome young man who pressed her to marry him.

The start of World War I in 1914 brought dramatic changes to all of Europe including England. Earlier British wars had been fought mainly in distant countries such as India and Afghanistan. Suddenly battles were being fought close to home and wounded soldiers were being sent home to hospitals in England. Most young men joined the army, including Archie Christie, who was soon sent overseas to fight in France.

Like many other women in those days, Agatha volunteered to work for the Red Cross in British hospitals. It was a full-time volunteer job, and Agatha learned a great deal about nursing and especially about handling drugs, tending the sick, and dealing with death. During one of his home leaves, Archie and Agatha got married.

Settling down to peacetime life was not easy. Neither Archie nor Agatha was wealthy, although they were accustomed to living as if they were. Their only child, Rosalind, was born in 1919. Archie found jobs in business while Agatha was responsible for taking care of the house and of Rosalind. She wrote her first novels during these postwar years, but finding a publisher was difficult. Finally, she tried writing mystery stories, basing her major character, Hercule Poirot, on the Belgium soldiers she had met during her wartime work. The first Hercule Poirot story, The Mysterious Affair at Styles caught the public’s attention and has held it. Played by a series of actors during the years, Poirot is still appearing in movies and television productions more than a hundred years after he was first introduced.

Agatha continued to write mysteries and soon became one of the most popular and well-known British novelists. Unfortunately, her marriage did not fare so well, and in 1926, this led to the most dramatic episode in her life. The year had not gone well for Agatha, starting with her mother’s death in the spring. In December, Archie asked for a divorce because he wanted to marry his assistant. The day after his announcement, after leaving Rosalind with her sister, Agatha disappeared. Her empty car was soon discovered, but Agatha had vanished. Newspapers worldwide seized upon this story and the search was on. There were reports that Agatha had been seen dancing at a health spa, and later at a resort hotel, but it was ten days before she was finally discovered. She was registered under an assumed name at a spa not far from her country house.

Agatha never completely explained what had happened. After she was discovered, she went into seclusion at her sister’s house leaving the public to argue whether her disappearance had been a publicity stunt or the result of genuine mental illness. Gradually she recovered and returned to normal life. But her marriage to Archie was ended. Her divorce was finalized and Agatha continued her writing career. For the most part she led a quiet, successful life. She had a happy second marriage with anthropologist Max Mallowan, raised her daughter, and enjoyed domestic life. But through all of her years she continued to write and publish more stories that entranced thousands of readers.

Several biographies have been written about Agatha Christie and many of them focus on the few days of her mysterious disappearance in 1926. Fans still argue about the causes and effects of that event, but probably the more important mystery is the question of why her career lasted so long and why it was so successful. The statistics are startling. During her lifetime, Christie published 66 mystery books as well as 14 short story collections. Her play, The Mousetrap, set a record as the world’s longest-running play. All of her works were written in English, but they have been translated and published in 44 different languages.

What is the secret of Agatha Christie’s success? That is the biggest mystery of all. She wrote most of her books during between 1920 and 1970. Other authors of that time have published other mysteries that were popular, but none of them approached the perennial appeal of Christie. Some critics have suggested that it is the cleverness of her best-known detectives, Hercule Poirot and Miss Jane Marple, that keeps readers entranced. Others say that the complexity of Christie’s plots are the secret ingredient that wins her fans. Her mysteries are honest in the sense that the clues are laid out clearly so the clever reader can match wits with the fictional detectives. And year after year the books continue to be reprinted and produced in electronic versions and readers continue to seek them out.

The only way to judge whether or not Agatha Christie’s work deserves the popularity it has achieved is to read the books for yourself or perhaps to view the film adaptations. Then you too can decide whether or not you are one of Christie’s fans and whether you can solve the mystery of her lasting appeal.