The Third Policeman is a novel by Irish writer Brian O'Nolan, writing under the pseudonym Flann O'Brien. It was written in 1939 and 1940, but after it initially failed to find a publisher, the author withdrew the manuscript from circulation and claimed he had lost it. The book remained unpublished at the time of his death in 1966. It was published by MacGibbon & Kee in 1967. Source: Wikipedia (en)