‘It would be wonderful’: the team hoping to unearth ‘Cornwall’s Stonehenge’

Experts and volunteers working at Castilly Henge have been trying determine if it is the county's lost great stone circle

It was a grey Cornish autumn day, but Henry Stevens's tough shift digging in a field next to the A30 was about to get very exciting.

Her eye was caught by something glinting in the soil and she picked up a flake of flint that had lain for thousands of years within what might just turn out to be a Cornish version of Stonehenge.