The letter appeared on a Wednesday. Ed found it by accident. He was at the newsagent's on Marchant Street, buying a newspaper he didn't usually read because the headline had caught his eye—something about the Americans and the Korean War, a conflict he had followed obsessively since arriving in this decade because it was happening in his own country's history, in a world he had left and could not return to—when he glanced at the letters page and saw a block of text that made his heart stop. *T...