The Thirty-Nine Steps

"The Thirty-Nine Steps" is a novel written by the Scottish author John Buchan. It was first published in 1915.
The novel is a classic of the espionage and adventure genres and is often considered one of the earliest examples of the "man-on-the-run" thriller. The story follows the protagonist, Richard Hannay, who becomes embroiled in a web of international espionage and intrigue after a chance encounter with a stranger. Hannay soon finds himself pursued by both the police and a mysterious organization, and he must evade capture while unraveling a complex conspiracy.
"The Thirty-Nine Steps" is celebrated for its fast-paced plot, suspense, and the character of Richard Hannay. It is a story of espionage, suspense, and daring escapes, set against the backdrop of pre-World War I Europe. The novel has been adapted into several films, radio dramas, and television series and remains a classic in the thriller genre.