(Secret adversary): Investigating the case of a woman who has been missing for five years, Tommy and Tuppence Beresford uncover just enough information to solve the mystery and put their own lives in jeopardy.

"The Mysterious Affair at Styles" is a detective novel by Agatha Christie. It was written in the middle of World War I, in 1916, and first published by John Lane in the United States in October 1920 and in the United Kingdom by The Bodley Head on 21 January 1921. Styles was Christie's first published novel, introducing Hercule Poirot, Inspector (later, Chief Inspector) Japp, and Arthur Hastings. The story is told in first person by Hastings and features many of the elements that have become icons of the Golden Age of Detective Fiction, largely due to Christie's influence. It is set in a large, isolated country manor. There are a half-dozen suspects, most of whom are hiding facts about themselves. The book includes maps of the house, the murder scene, and a drawing of a fragment of a will, as well as a number of red herrings and surprise plot twists. "The Secret Adversary" is a work of detective fiction by Agatha Christie, first published in the United Kingdom by The Bodley Head in January 1922. The book introduces the characters of Tommy and Tuppence who feature in three other Christie books and one collection of short stories written throughout her writing career.

Agatha Christie’s Tommy and Tuppence Beresford are Partners in Crime—or rather partners in crime solving—and must demonstrate their deductive skills in a wide range of confounding cases after agreeing to take over Blunt’s International Detective Agency. Tommy and Tuppence Beresford are restless for adventure, so when they are asked to take over Blunt's International Detective Agency, they leap at the chance. Their first case is a success—the triumphant recovery of a pink pearl. Other cases soon follow—a stabbing on Sunningdale golf course; cryptic messages in the personal columns of newspapers; and even a box of poisoned chocolates. But can they live up to their slogan of "Any case solved in 24 hours"?

Investigating the case of Jane Finn, a woman who has been missing for five years, young adventurers Tommy and Tuppence Beresford uncover just enough information to solve the mystery and put their own lives in jeopardy. Reissue.

This anthology of rare stories of crime and suspense brings together 16 tales by masters of the Golden Age of Detective Fiction for the first time in book form, including a newly discovered Agatha Christie crime story that has not been seen since 1922.

A classic Agatha Christie short story, available individually for the first time as an ebook.

Agatha Christie, DBE, (15 September 1890 – 12 January 1976), was a British crime writer of novels, short stories, and plays. She also wrote romances under the name Mary Westmacott, but she is best remembered for her 80 detective novels—especially those featuring Hercule Poirot and Miss Jane Marple—and her successful West End theatre plays.According to the Guinness Book of World Records, Christie is the best-selling writer of books of all time and, with William Shakespeare, the best-selling author of any kind. She has sold roughly four billion copies of her novels.[1] According to Index Translationum, Christie is the most translated individual author, with only the collective corporate works of Walt Disney Productions surpassing her.[2] Her books have been translated into at least 103 languages.[3]Christie's stage play The Mousetrap holds the record for the longest initial run: it opened at the Ambassadors Theatre in London on 25 November 1952 and as of 2011 is still running after more than 23,000 performances. In 1955, Christie was the first recipient of the Mystery Writers of America's highest honour, the Grand Master Award, and in the same year Witness for the Prosecution was given an Edgar Award by the MWA for Best Play. Most of her books and short stories have been filmed, some many times over (Murder on the Orient Express, Death on the Nile and 4.50 From Paddington for instance), and many have been adapted for television, radio, video games and comics. - WikipediaTable of ContentsThe Mysterious Affair at Styles CHAPTER I. I GO TO STYLES CHAPTER II. THE 16TH AND 17TH OF JULY CHAPTER III. THE NIGHT OF THE TRAGEDY CHAPTER IV. POIROT INVESTIGATES CHAPTER V. "IT ISN'T STRYCHNINE, IS IT?" CHAPTER VI. THE INQUEST CHAPTER VII. POIROT PAYS HIS DEBTS CHAPTER VIII. FRESH SUSPICIONS CHAPTER IX. DR. BAUERSTEIN CHAPTER X. THE ARREST CHAPTER XI. THE CASE FOR THE PROSECUTION CHAPTER XII. THE LAST LINK CHAPTER XIII. POIROT EXPLAINS Secret Adversary Page 160CHAPTER I. THE YOUNG ADVENTURERS, LTD. CHAPTER II. MR. WHITTINGTON'S OFFER CHAPTER III. A SET BACK CHAPTER IV. WHO IS JANE FINN? CHAPTER V. MR. JULIUS P. HERSHEIMMER CHAPTER VI. A PLAN OF CAMPAIGN CHAPTER VII. THE HOUSE IN SOHO CHAPTER VIII. THE ADVENTURES OF TOMMY CHAPTER IX. TUPPENCE ENTERS DOMESTIC SERVICE CHAPTER X. ENTER SIR JAMES PEEL EDGERTON CHAPTER XI. JULIUS TELLS A STORY CHAPTER XII. A FRIEND IN NEED CHAPTER XIII. THE VIGIL CHAPTER XIV. A CONSULTATION CHAPTER XV. TUPPENCE RECEIVES A PROPOSAL CHAPTER XVI. FURTHER ADVENTURES OF TOMMY CHAPTER XVII. ANNETTE CHAPTER XVIII. THE TELEGRAM CHAPTER XIX. JANE FINN CHAPTER XX. TOO LATE CHAPTER XXI. TOMMY MAKES A DISCOVERY CHAPTER XXII. IN DOWNING STREET CHAPTER XXIII. A RACE AGAINST TIME CHAPTER XXIV. JULIUS TAKES A HAND CHAPTER XXV. JANE'S STORY CHAPTER XXVI. MR. BROWN CHAPTER XXVII. A SUPPER PARTY AT THE SAVOY CHAPTER XXVIII. AND AFTER