All my friends who wanted to write had got nowhere trying to write the great European novel. So I deliberately steered clear of that and set out to write something story-led.

I was sleeping in a water bed for a couple of years, recommended by my doctor. I was never comfortable in that water bed. In the middle of the night you would hear something happening - water and bubbles. I would always think there was some intelligent life in the water bed.

Phantom' was for me an interesting technique of telling the story. You have one voice that it is in the present telling what is happening, and then there's one voice from the past that's also driving the story forward. And you know that the two story lines will meet eventually.

It was a sudden inspiration. But inspiration never came without a reason.

I'm just an entertainer. In a way crime stories are boring. A crime's been committed and at the end you know it will be solved. So you've got to make the story interesting besides it just being a plot. And that's why character matters, why you've got to make the characters interesting.

At nineteen I was pretty sure I was going to be a professional soccer player. At that time I played for one of the Norwegian premier leagues. But I tore ligaments in both knees, so I started studying business administration and economics and became a financial analyst, and I worked at a brokerage firm as a stockbroker.

Revenge is the thinking man's reflex, a complex blend of action and consistency no other animal species has so far succeeded in evolving. Evolutionary speaking, the practice of taking revenge has shown itself to the so effective that only the most vengeful of us have survived.