On 5 July 2009, an unemployed 54-year-old metal detectorist called Terry Herbert was walking through a Staffordshire field when his detector started to beep and didn’t stop. Herbert guessed almost immediately that he’d found gold. What he didn’t realise was that he had made Britain’s greatest archaeological discovery since the second world war. Three hundred sword-hilt fittings, many of them spectacular examples of Anglo-Saxon metalwork; a mysterious gold-and-garnet headdress, apparently for a priest; miniature sculptures of horses, fish, snakes, eagles and boars. The Staffordshire Hoard, as it became known, led to a sold-out exhibition, an Early Day Motion in parliament saluting ‘the UK’s largest haul of gold Anglo-Saxon treasure’, and, for Herbert himself, a share of the £3.