Periodically I just notch up. And everyone among my colleagues thinks that Perfidia - in its accessibility, its big throbbing heart - will be the biggest notch up yet. We'll see what happens. It's on my ass.

Well, the clues are there. They always are. Which is why when crimes are solved decades after the fact, it's obvious that the clues had always been right in front of them. A traffic ticket in Brooklyn is how they got ["Son of Sam" serial killer] David Berkowitz. You've just got to look.

I have insane curiosity as to what happened in all these events. I will never know. I'm not a researcher. I don't possess that kind of mind. I have a researcher who compiles the fact sheets and chronologies that allow me to write these big books of mine.

"War gives men a plain-and-simple something to do ... Women write diaries in the hope that their words will beckon fate." It's a romantic manifesto.

To me, there's nothing on earth other than women. It's why I get out of bed every morning.

I want to have enough data, so I won't write myself into thin air, so that I can extrapolate and give you this secret human infrastructure. The only way I sate my own curiosity is to create this from scratch. There must be commanding love stories. There must be great moral cost.

I don't know anybody in the underworld. I make this stuff up. I don't know any criminals.