"Sometimes, in the trenches, you get the sense of something, ancient. One trench we held, it had skulls in the side, embedded, like mushrooms. It was actually easier to believe they were men from Marlborough's army, than to think they'd been alive a year ago. It was as if all the other wars had distilled themselves into this war, and that made it something you almost can't challenge. It's like a very deep voice, saying; 'Run along, little man, be glad you've survived"