But there are always dark hearts, like the killer's in this book. Our existence is a fight for gain, says the killer's heart, and whoever cannot kill his neighbor has no right to an existence. Killing is, after all, only hastening the inevitable. Death allows no exceptions, which is good, because life is pain and suffering. As in most of the novels he's in, Harry Hole dwells with this philosophy a while, and, to tell the truth, nothing comes to disabuse either him, or the killer, or us of it. That, too, is morally horrific.