On February 12, 1989, a photographer attached to a Cambridge University archaeological expedition was setting up his tripod on a cliff overlooking the Valley of the Kings when he happened to notice something gold-coloured glittering in the rocks at his feet. Dropping to his knees and digging with eager hands he proceeded to uncover not one but two screwed-up Caramac wrappers, some orange peel, a bag of vomit, and an empty Um Bongo carton (25cl). I'd like to apologise to that photographer and ...