Nelson now bends his head to his computer screen. ‘Lots of archaeologists there, are there?’

‘Yes. My uncle owns the local pub, the Phoenix, and he says they’re in there every night. He’s had to double his cider order.’

‘Typical,’ grunts Nelson. He can just imagine archaeologists drinking cider when everyone knows that bitter’s a man’s drink. Women archaeologists, though, are another matter.

‘I might have a look at the site on my way back,’ he says.

‘Are you interested in history?’ asks Leah disbelievingly.

‘Me? Yes, fascinated. Never miss an episode of Sharpe.’

‘You should be on our pub quiz team then.’

‘I get too nervous,’ says Nelson blandly, typing in his password with one finger. Nelson1; he’s not one for ambiguity. ‘Do me a favour, love, make us a cup of coffee would you?’

Swaffham is a picturesque market town, the kind Nelson drives through every day without noticing. A few miles outside and you are deep in the country – fields waist high with grass, signposts pointing in both directions at once, cows wandering across the road shepherded by a vacant-looking boy on a quad bike. Nelson is lost in seconds and almost gives up before it occurs to him to ask the vacant youth the way to the Phoenix pub. When in doubt in Norfolk, ask the way to a pub. It turns out to be quite near so Nelson does a U-turn in the mud, turns into a road that is no more than a track and there it is, a low thatched building facing a high, grassy bank. Nelson parks in the pub car park and, with a heart turn that he does not want to acknowledge as excitement, he recognises the battered red Renault parked across the road, at the foot of the hill. I just haven’t seen her for a while, he tells himself, it’ll be good to catch up.

He has no idea where to find the dig, or even what it will look like, but he reckons he’ll be able to see more from the top of the bank. It’s a beautiful evening, the shadows are long on the grass and the air is soft.