She went through several huge emotional swings in her assessment of the level of difficulty. A thousand meters simply wasn’t that great a distance. Ten football pitches. And so, viewed from a comfortable remove, the job hadn’t seemed that difficult. During her first couple of weeks of wearing out shoe leather in downtown Xiamen, though, she became inordinately depressed about her chances of making any headway. The population of the square kilometer in question was probably between twenty and thirty thousand. The number of buildings ran to several hundred. She felt overwhelmed, wandering around all day getting lost in the district’s tortuous, crowded streets and then lying half awake all night in her Gulangyu apartment, retracing the steps she’d taken during the day and having hallucinatory dreams about all that she’d seen.