"Two silver bars, Lawrence, each with a value of some hundred and twenty-five pounds. One of them should be very close to us." Alan stands up, pulls a compass out of his pocket, turns to face magnetic north, and squares his shoulders. Then he rotates a few degrees. "Can’t remember whether I allowed for declination," he mumbles. "Right! In any case. One hundred paces north." And he strides off into the woods, followed by Lawrence, who has been given the job of carrying the metal detector.