'I remember that time travelling down on the Cathedrals Express in the middle of winter, my hands freezing as I tried to clear the windows of condensation to look at the white, still countryside. No heating was on. I’d sat as long as I could, hunched into my coat, the door of the compartment continually being opened and shut by people walking along the corridor and looking in, hoping for a warmer carriage, and then I heard a voice say it would be warmer nearer the engine. So I followed out into the corridor, pushing my way through people going in each direction, standing stamping their feet, curling their palms hopefully round cigarettes.' (Introduction)