It was 4:30 on a Wednesday afternoon in August, about eighty-five degrees and still clear-bright. With his back flat against the storage shack on the roof, he was invisible to anyone looking up from the ground. He knew from observation that neither the tourist helicopters nor the police versions ever passed over this area. In spite of the heat, Wesley wore a soft black felt hat and a dark suit; his hands were covered with dark-gray deerskin gloves. The breeze blew the ash away from his cigarette. Aware of his habit of biting viciously into the filters, he carefully placed the ground-out butt into his leather-lined side pocket before he got to his feet and stepped back inside the shack. A soft green light glowed briefly as he entered. Wesley picked up a silent telephone receiver and held it to his ear. He said nothing. The disembodied voice on the phone said, “Yes,” and a dial tone followed at once. So Mansfield was going to continue his habit: Wednesday night at Yonkers, Thursday afternoon at Aqueduct.