In Alan Bennett's A Question of Attribution, Anthony Blunt instructs Her Majesty the Queen about pictures. 'Because something is not what it is said to be, Ma'am, does not mean it is a fake.' 'What is it?' she asks. Sir Anthony gingerly suggests: 'An enigma?' Here as in Tom Stoppard's Hapgood, the figure of the spy illustrates the irreducibility of human and aesthetic mystery, the contradictions that all personalities enshrine, the confusion that no amount of pedantic energy can resolve.

LRB 30 March 1989 | PDF Download