4 At eight o'clock that morning, in the city to the east of the Half Moon Inn, Jan and Greg strolled around a small lake in a large municipal park. He threw grain to the ducks and passed some to her. "Be natural," he said with a jovial smile. "We're here to feed the ducks." She didn't know whether to laugh or to take him seriously. "Are we being followed–or are you just paranoid?" "It's always best in a public space to be doing something normal. That's one way to remain invisible. If we feed the ducks, people will watch the birds, not us." Yes, she thought, blend in, be a chameleon. The unobserved observer. A way of life she might have to cultivate. They walked on a little way and threw more grain. "So we've lost the girls?" he asked casually, watching the ducks. "They've gone. I wa

