Plot: The Royal Naval Engineering College in Plymouth, which is celebrating 100 years of existence, is the venue for this fifth heat. The contenders are: Sheila Denyer (laundry worker): The Bible Josephine Lawrey (housewife): Italian Painting, Masaccio to Michelangelo Ken Smith (buyer): Kings and Queens of England, 1066-1485 Ingram Wilcox (civil servant): The Crusades, 1095-1192