At about four-forty, Melanie thought she saw something move out in the hall, but it was hard to see. Some of the offices were closed already, leaving the halls shadowed. The lights around the elevators were on a timer, and late in the day all, except those in the very middle, clicked off. The subdued lighting left the corners draped in darkness. She narrowed her gaze as she raked the area carefully, and felt a stab of fear when she saw a man standing in a shadow watching her. It’s nothing, she told herself. He’s just waiting for someone. Maybe the elevator, or a friend. She tried to ignore him, but became increasingly uncomfortable when he kept glaring at her. She was just about to reach for the phone to call the police when he stepped out of the shadow and began walking into the dim lig