David Landale, a linen merchant in Kirkcaldy, and George Morgan, a soldier turned banker, fall out over a bank loan in 1826. Morgan spreads rumours about his client's creditworthiness after Landale takes his business elsewhere; Landale fires back with a stiff letter of complaint to the Bank of Scotland's Edinburgh headquarters. The dispute could have ended there, but Morgan's temper gets the better of him one morning on Kirkcaffy High Street, where he strikes Landale about the head with an umbrella in full public view. The insult leaves only one resolution available under the code of the time: a challenge. On 23 August 1826, the two men meet at dawn in a field outside Kirkcaldy in southern Fife. Only one walks away. BBC News journalist James Landale, a descendant of David Landale, retraces his ancestor's steps through the town, the bank ledgers, and the field itself, reconstructing what is generally recorded as the last fatal duel fought on Scottish soil.