You can't write about the past and ignore religion. It was such a fundamental, mind-shaping, driving force for pre-modern societies. I'm very interested in what religion does to us - its capacity to create love and empathy or hatred and violence.

I was a news reporter for 16 years, seven of them a foreign correspondent in the Middle East, Africa and the Balkans. Perhaps the most useful equipment I acquired in that time is a lack of preciousness about the act of writing. A reporter must write. There must be a story. The mot juste unarriving? Tell that to your desk.

I can always write. Sometimes, to be sure, what I write is crap, but it's words on the page and therefore it is something to work with.

Write what you know. Every guide for the aspiring author advises this. Because I live in a long-settled rural place, I know certain things. I know the feel of a newborn lamb's damp, tight-curled fleece and the sharp sound a well-bucket chain makes as it scrapes on stone. But more than these material things, I know the feelings that flourish in small communities. And I know other kinds of emotional truths that I believe apply across the centuries.

When I write a word in English, a simple one, such as, say, 'chief,' I have unwittingly ushered a querulous horde into the room. The Roman legionary is there, shaking his cap, or head, and Andy Capp is there, slouching in his signature working man's headgear.

Because I worked as a newspaper reporter for about 14 years before attempting my first novel, I learned to write under almost any circumstances- by candle light, in longhand, in African villages where there was no power, under shelling in Kurdistan.

It is human nature to imagine, to put yourself in another's shoes. The past may be another country. But the only passport required is empathy.