"The Secret of Chimneys" is a mystery novel written by Agatha Christie, first published in 1925. It is one of Christie's early works and is known for its blend of humor, intrigue, and suspense.The story is set in the English countryside at the sprawling and mysterious Chimneys estate, which is known for its impressive chimney stacks. The plot revolves around the character of Anthony Cade, a charming and adventurous man who becomes embroiled in a web of international intrigue and murder when he visits Chimneys. Cade is a likable and resourceful protagonist who gets caught up in a series of unexpected events.The central mystery of the novel involves the theft of a political document called "The Secret of Chimneys," which could potentially destabilize the political balance of Europe. As the story unfolds, it becomes apparent that there are multiple parties interested in obtaining this document, and secrets from the past are unearthed.Agatha Christie's trademark elements of deception, hidden identities, and a large cast of characters with their own motivations are present in this novel. The story also features her signature detective, Superintendent Battle, who is called in to solve the complex mystery."The Secret of Chimneys" is notable for its witty and engaging narrative, as well as its exploration of political intrigue, espionage, and international relations. It is a captivating blend of mystery and adventure, with a touch of romance, and it keeps readers guessing until the final reveal. Christie's skillful storytelling and clever plot twists make this novel a classic example of her work and a must-read for fans of detective fiction and mystery novels.