Four contenders from London and the South East seek a place in the semi-finals of Mastermind 1988. They are the guests of Hatfield Polytechnic in Hertfordshire. John Rook (lecturer) European history 1815-1914 Susanna Martelli (wine bar manager) The novels and short stories of J. D. Salinger Howard Pizzey (finance officer) pop music 1955-79 Alan Foss (actor) The life and works of P. G. Wodehouse