But sometimes, maybe most times, it isn't that clear. It is dark and you are near the edge of a cliff, but you're moving slowly, not sure which direction you're heading in. Your steps are tentative but they are still blind in the night. You don't realize how close you are to the edge, how the soft earth could give away, how you could just slip a bit and suddenly plunge into the dark.

No characters in 'Stay Close,' including the leads, are black and white. I want them to be grey. I think that makes for a much more interesting reading experience, something that will stay with you a little bit longer.

Trust is like that. You can break it for a good reason. But it still remains broken.

This is the price you pay for having a great father. You get the wonder, the joy, the tender moments - and you get the tears at the end, too.

There is the old catch-22 line that a mentally unstable person can't know, as per their illness, that they are unstable. But that was wrong. You can and do have the insight to see your own crazy.

I still try to make the "next" book my "best" book. I want to grip and move you in unexpected ways.

I don't find any real rivalries with crime and thriller writers anyway. That might sound a little Pollyanna, but for the most part the writers I compete with, if you want to use that word, it's a pretty friendly rivalry. I think we all realise that the boat rises and sinks together.