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. Brian O'Nolan: Brian O'Nolan (Irish: "Brian Ó Nualláin" ; 5 October 1911 – 1 April 1966) was an Irish novelist, playwright and satirist, considered a major figure in twentieth century Irish literature.
i don't know