Complete Mystery Detective Novels of Agatha Christie

According to the Guinness Book of World Records, Christie is the best-selling novelist of all time. Her novels have sold roughly four billion copies, and her estate claims that her works rank third, after those of William Shakespeare and the Bible, as the world's most widely published books. According to Index Translationum, Christie is the most translated individual author, and her books have been translated into at least 103 languages. And Then There Were None is Christie's best-selling novel with 100 million sales to date, making it the world's best-selling mystery ever, and one of the best-selling books of all time. In 1971, she was made a Dame by Queen Elizabeth II at Buckingham Palace.

Table of Contents
The Secret Adversary
The Mysterious Affair at Styles

The Secret Adversary -
True and Complete Edition: Agatha Christie's first Tommy and Tuppence mystery adventure. These two are among the favorites of Christie fans world wide - dive in and see why! Tommy and Tuppence, two young people short of money and restless for excitement, embark on a daring business scheme -- Young Adventurers Ltd. Their advertisement says they are 'willing to do anything, go anywhere'. But their first assignment, for the sinister Mr. Whittington, plunges them into more danger than they ever imagined! It is generally considered to be one of the top 100 greatest books ever written. This wonderful novel will attract a whole new generation of readers. For many, Secret Adversary is required reading for various courses and curriculums. And for others who simply enjoy reading a timeless classic mystery, this gem by Christie is universally recommended. Tommy and Tuppence should be part of every mystery lover's library! COMPLETE Edition!

The Mysterious Affair at Styles -
The novel is set in England during World War I at Styles Court, an Essex country manor (also the setting of Curtain, Poirot's last case). Upon her husband's death, the wealthy widow, Emily Cavendish, inherited a life estate in Styles as well as the outright inheritance of the larger part of the late Mr. Cavendish's income. Mrs. Cavendish became Mrs. Inglethorp upon her recent remarriage to a much younger man, Alfred Inglethorp. Emily's two stepsons, John and Lawrence Cavendish, as well as John's wife Mary and several other people, also live at Styles. John Cavendish is the vested remainderman of Styles; that is, the property will pass to him automatically upon his stepmother's decease, as per his late father's will. The income left to Mrs Inglethorp by her late husband would be distributed as per Mrs. Inglethorp's own will.
Late one night, the residents of Styles wake to find Emily Inglethorp dying of what proves to be strychnine poisoning. Lieutenant Hastings, a houseguest, enlists the help of his friend Hercule Poirot, who is staying in the nearby village, Styles St. Mary. Poirot pieces together events surrounding the murder. On the day she was killed, Emily Inglethorp was overheard arguing with someone, most likely her husband, Alfred, or her stepson, John. Afterwards, she seemed quite distressed and, apparently, made a new will — which no one can find. She ate little at dinner and retired early to her room with her document case. The case was later forced open by someone and a document removed. Alfred Inglethorp left Styles earlier in the evening and stayed overnight in the nearby village, so was not present when the poisoning occurred. Nobody can explain how or when the strychnine was administered to Mrs. Inglethorp.
At first, Alfred is the prime suspect. He has the most to gain financially from his wife's death, and, since he is so much younger than Emily was, the Cavendishes already suspect him as a fortune hunter. Evelyn Howard, Emily's companion, seems to hate him most of all. His behaviour, too, is suspicious; he openly purchased strychnine in the village before Emily was poisoned, and although he denies it, he refuses to provide an alibi. The police are keen to arrest him, but Poirot intervenes by proving he could not have purchased the poison. Scotland Yard police later arrest Emily Inglethorp’s oldest stepson, John Cavendish. He inherits under the terms of her will, and there is evidence to suggest he also had obtained poison.
Poirot clears Cavendish by proving it was, after all, Alfred Inglethorp who committed the crime, assisted by Evelyn Howard, who turns out to be his kissing cousin, not his enemy. The guilty pair poisoned Emily by adding a precipitating agent, bromide (obtained from Mrs Inglethorp's sleeping powder), to her regular evening medicine, causing its normally innocuous strychnine constituents to sink to the bottom of the bottle where they were finally consumed in a single, lethal dose. Their plan had been for Alfred Inglethorp to incriminate himself with false evidence, which could then be refuted at his trial...