Chasing the dragon

I’M standing in the heart of Avebury’s impressive henge, the three stone circles of which dominate this small Wiltshire village. It’s usually thronged with visitors walking among the stones, the National Trust cafe and car park full to bursting. Today, it’s Covid-quiet, eerily so, and bitterly, bitterly cold. But it’s that very quiet that enables me, walking alone, to see more clearly what has