Plot: The second place in the final is at stake when four more semi-finalists face Magnus Magnusson in the McEwan Hall at the University of Edinburgh. Contestants: Jim Maginnis (Royal Air Force officer) history of Belfast, 1690-1960; Roderick Diggins (temporary accounts clerk) life and work of Sir Christopher Wren ; Kate Ford (librarian) life and Hornblower novels of C S Forester; Donald Yule (pensions administrator) Jacobite rising of 1745