What novel written by an Irish novelist, playwright and satirist,  who wrote under the pseudonym Flann O'Brien, was published by MacGibbon & Kee in 1967?
The Third Policeman The Third Policeman is a novel by Irish writer Brian O'Nolan, writing under the pseudonym Flann O'Brien. It was written between 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 The book remained unpublished at the time of his death in 1966.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.
William Kirkpatrick Magee William Kirkpatrick Magee (16 January 1868 – 9 May 1961), was an Irish author, editor, and librarian, who as an essayist and poet adopted the pen-name of John Eglinton. He became head librarian of the National Library of Ireland, after opposing the "cultural nationalism" of his time. From 1904 to 1905 he edited the literary journal "Dana" and was the biographer of George William Russell ("Æ").