This collection of 25 Hercule Poirot adventures is compiled from short stories written by Agatha Christie for The Sketch magazine in 1923 from March to December. In these stories, including "The Disappearance of Mr. Davenheim", "The Veiled Lady", and "The Adventure of the Egyptian Tomb", the eccentric private detective slowly and surely solves mysteries involving jealousy, revenge, and greed. These stories were well-received at the time and cemented Christie's reputation as the worthy successor to Arthur Conan Doyle.

Upon finding a mysterious note at the scene of an accident, spunky Ann Beddingfeld throws caution to the wind and sets sail for an adventure to South Africa. She gets more thrills than she bargained for when she finds herself embroiled in a crooked diamond scheme, a murder, and in the clutches of the mysterious “Colonel".

When James McGrath needed someone to take a memoir to a publisher and to return letters to the woman who wrote them, he chooses his friend Anthony Cade, who agrees to take on the two jobs. But on Anthony's first night in London, the letters are stolen from his hotel room. He soon finds himself embroiled in a web of intrigue, conspiracy, and secrets that leads all the way to the top levels of government.

It's very easy to kill - so long as no one suspects you.' So says Miss Pinkerton when ex-policeman Luke Fitzwilliam meets her on a train. Luke doesn't take much notice of this little old lady's story about a serial killer on the loose in her village - until her predictions start to come true, when he feels compelled to check it out. Very soon the race is on to prevent any more murders...

Published in January 1922, The Secret Adversary is the second detective fiction novel by British crime novelist Agatha Christie. The book introduces the characters of Tommy Beresford and Prudence Tuppence Cowley, two out-of-work 20-somethings in post-war London. The two agree to form The Young Adventurers, Ltd, hiring themselves out with the slogan no reasonable offer refused. They are quickly enlisted to solve the mysterious disappearance of a young woman who was entrusted with sensitive diplomatic documents amid the sinking of the RMS Lusitania.