Taunton, Oxford, Bristol and Jersey are the home towns of tonight's Mastermind competitors. They meet together at Cardiff University for the eighth heat. The contenders are:RICHARD THOMPSON, retired banker - The Mahrattas and their Wars 1657-1848JOHN MCKEAN, licensee - The Zulu War - 1879PETER TABB, newspaper executive - The Life of General Robert E. Lee LORNA VERSO, housewife - Life of Mary Queen of Scots