The neighborhood is divided into "estates," each composed of a house, some quite large, and about a hectare of carefully sculptured terrain. Each of these estates has its own individual security system. In effect, she must work her way past a dozen redundant systems in order to reach her target undetected. Her course is less than direct because one cannot enter the Park just anywhere, and certain estates are better-defended than others. While evading detection by electronic means, she must also keep watch for zonies on patrol and remain alert for any residents who might happen to wander out of doors. There is plenty to keep her busy. She spends much time crouched in bushes, just looking, listening, and checking her detectors.