I hope I succeed in demonstrating that you may equally find compelling and significant narratives - stories that alter or add to our understanding of history - in unprepossessing places: a Victorian sewer system; a Cold War bunker; derelict hospitals.

I was brought up in a house where I was so aware of a life that had been broken by politics and conflict.

I don't know why, but I think the eating of food is hugely enhanced when you do it on a train. Even a simple steak and chips, when the world is rushing past outside, can take you to heaven.

What is it about trains that makes food taste so good? Some of my happiest memories are of prolonged lunches between St. Moritz and Zurich, Bordeaux and Paris, and even between Coimbra and Salamanca.

I'm quite influenced in this by one of my heroes, Montaigne, who thought a man's real task was to render as honest an account of himself as he could.

The role model thing gets imposed on you by someone else. I don't think that's fair.

I don't even subscribe to writer's block being a truthful thing. I've had writer's laziness quite often. But I think it's all about sitting down and facing down the blank page and doing it, and I've always been ok at that.

I kind of think the rookie wall is all in your mind, to be completely honest.