Thirty miles from our destination, we came to a police post and a striped barrier. A policeman with a Kalashnikov strapped across his chest allowed us to proceed but warned us that we shouldn’t on any account stop along the way. I wondered what he meant. We passed relatively modern buildings without glass in their windows, as if a significant settlement had been abandoned a long time ago. We passed through an area that had been swept by fire. Blackened birch trees stood with their crowns lopped off, like an endless henge. It was the world of Tarkovsky’s Stalker. ‘Is this the Zone?’ I asked.

