Agatha Christie book The Labours of Hercules
The Labours of Hercules (1967)
Dame Agatha Mary Clarissa Christie, Lady Mallowan, was an English writer known for her sixty-six detective novels and fourteen short story collections, particularly those revolving around fictional detectives Hercule Poirot and Miss Marple. She also wrote the world's longest-running play, The Mousetrap, which was performed in the West End from 1952 to 2020, as well as six novels under the pseudonym Mary Westmacott. In 1971, she was made a Dame for her contributions to literature. Guinness World Records lists Christie as the best-selling fiction writer of all time, her novels having sold more than two billion copies.
Christie was born into a wealthy upper-middle-class family in Torquay, Devon, and was largely home-schooled. She was initially an unsuccessful writer with six consecutive rejections, but this changed in 1920 when The Mysterious Affair at Styles, featuring detective Hercule Poirot, was published. Her first husband was Archibald Christie; they married in 1914 and had one child before divorcing in 1928. During both World Wars, she served in hospital dispensaries, acquiring a thorough knowledge of the poisons which featured in many of her novels, short stories, and plays. Following her marriage to archaeologist Max Mallowan in 1930, she spent several months each year on digs in the Middle East and used her first-hand knowledge of his profession in her fiction.
According to Index Translationum, she remains the most-translated individual author. Her novel And Then There Were None is one of the highest-selling books of all time, with approximately 100 million copies sold. Christie's stage play The Mousetrap holds the world record for the longest initial run. It opened at the Ambassadors Theatre in the West End of London on 25 November 1952, and by September 2018 there had been more than 27,500 performances. The play was closed down in March 2020 due to the coronavirus pandemic.
In 1955, Christie was the first recipient of the Mystery Writers of America's Grand Master Award. Later that year, Witness for the Prosecution received an Edgar Award for best play. In 2013, she was voted the best crime writer and The Murder of Roger Ackroyd the best crime novel ever by 600 professional novelists of the Crime Writers' Association. In September 2015, And Then There Were None was named the "World's Favourite Christie" in a vote sponsored by the author's estate. Most of Christie's books and short stories have been adapted for television, radio, video games, and graphic novels. More than thirty feature films are based on her work. Wikipedia

Agatha Christie book The Labours of Hercules
The Labours of Hercules (1967)
Lucy Angkatell
The Hollow (1946)
Agatha Christie book After the Funeral
After the Funeral (1953)
Murder for Christmas (1939, Holiday for Murder, Hercule Poirot’s Christmas)
“From a distance he had the bland aspect of a philanthropist.”
Agatha Christie book Murder on the Orient Express
Murder on the Orient Express (1934)
Agatha Christie book N or M?
N or M? (1941)
“What else will you have? Nice banana and bacon sandwich?”
Agatha Christie book The Pale Horse
The Pale Horse (1961)
“Blood tells — always remember that — blood tells.”
Agatha Christie book The Mysterious Affair at Styles
The Mysterious Affair at Styles (1920)
“Pilar sat squeezed up against the window and thought how very odd the English smelt.”
Murder for Christmas (1939, Holiday for Murder, Hercule Poirot’s Christmas)
“But when investing money, keep, I beg of you, Hastings, strictly to the conservative.”
Hercule Poirot’s Early Cases (1974)
“Do you always travel first-class, Mr. Hardman?”
“Yes, sir. The firm pays my travelling expenses.”
Agatha Christie book Murder on the Orient Express
He winked.
Murder on the Orient Express (1934)
Agatha Christie book The Mysterious Affair at Styles
“Ah!”
The Mysterious Affair at Styles (1920)
““Tcha! Tcha!” cried Poirot irritably. “You argue like a child.””
Agatha Christie book The Mysterious Affair at Styles
The Mysterious Affair at Styles (1920)
“How averse human beings were ever to admit ignorance!”
Agatha Christie book After the Funeral
After the Funeral (1953)
““It makes her rather alarming,” I said.
“Sincerity has that effect,” said Miss Marple.”
Agatha Christie book The Moving Finger
The Moving Finger (1942)
“Remember, he was a fanatic, and there is no fanatic like a religious fanatic.”
Hercule Poirot’s Early Cases (1974)
Agatha Christie book Murder on the Orient Express
Murder on the Orient Express (1934)
Agatha Christie book The Mystery of the Blue Train
The Mystery of the Blue Train (1928)
Agatha Christie book The Mysterious Affair at Styles
“No, no,” he gasped. “It is — it is — that I have an idea!”
The Mysterious Affair at Styles (1920)
“Ah, but it is incredible how often things force one to do the thing one would like to do.”
Agatha Christie book Death in the Clouds
Death in the Clouds (1935)
“And if you cast down an idol, there's nothing left.”
Henrietta Savernake
The Hollow (1946)
Source: Curtain - Poirot's Last Case (1975), chapter 5
Agatha Christie book The Labours of Hercules
The Labours of Hercules (1967)
“To commit a successful murder must be very much like bringing off a conjuring trick.”
Agatha Christie book The Moving Finger
The Moving Finger (1942)
“I have made my choice, Hori. I will share my life with you for good or evil, until death comes…”
Agatha Christie book Death Comes as the End
With his arms round her, with the sudden new sweetness of his face against hers, she was filled with an exultant richness of living.
Death Comes as the End (1945)