Strike knew how deeply ingrained was the belief that the evil conceal their dangerous predilections for violence and domination. When they wear them like bangles for all to see, the gullible populace laughs, calls it a pose, or finds it strangely attractive.

Except that once you had broken up, it was much easier to do so again. He ought to know. How many times had he and Charlotte split? How many times had their relationship fallen to pieces, and how many times had they tried to reassemble the wreckage? There had been more cracks than substance by the end: they had lived in a spider's web of fault lines, held together by hope, pain and delusion.

He was sorry, genuinely sorry, for the pain she was in. Yet the revelation had caused certain other feelings — feelings he usually kept under tight rein, considering them both misguided and dangerous — to flex inside him, to test their strength against their restraining bonds.

Robin felt her luck, these days, at having two loving parents. Her work had taught her how many people weren’t that fortunate, how many people had families that were broken beyond repair, how many adults walked around carrying invisible scars from their earliest childhood, their perceptions and associations forever altered by lack of love, by violence, by cruelty.

As suddenly as they had reached for each other, they broke apart. Tears were rolling down Robin's face. For one moment of madness, Strike yearned to say, “Come with me”, but there are words that can never be unsaid or forgotten, and those, he knew, were some of them.

The country was lumbering towards election day. Strike turned in early on Sunday and watched the day's gaffes, counterclaims and promises being tabulated on his portable TV. There was an air of joylessness in every news report he watched. The national debt was so huge that it was diffcult to comprehend. Cuts were coming, whoever won; deep, painful cuts; and sometimes, with their weasel words, the party leaders reminded Strike of the surgeons who had told him cautiously that he might experience a degree of discomfort; they who would never personally feel the pain that was about to be inflicted.

In essence, we tend to sort each other and ourselves into groupings, and that usually leads to an overestimation of similarities between members of a group, and an underestimation of the similarities between insiders and outsiders.

There were undoubtedly those to whom killing was easy and pleasurable: he had met a few such. Millions had been successfully trained to end others' lives; he, Strike, was one of them. Humans killed opportunistically, for advantage and in defense, discovering in themselves the capacity for bloodshed when no alternative seemed possible; but there were also people who had drawn up short, even under the most intense pressure, unable to press their advantage, to seize the opportunity, to break the final and greatest taboo.