The book I made it big with in the U.S. was my fourth book, 'Sanctum.' My novels sell really well both there and in Canada, so once a year I do a promotional tour, visiting a different city every two days, doing book readings and signings.

Because I write a book a year, I always want to do one other project every year that's stimulating in a different way. It means you can be working but not using up your prose juice, you know?

With my earlier books, I got quite bored being with one protagonist all the way through. With the Alex Morrow books, I wanted to do something a bit more holistic, so there were lots of different points of view, and I wanted to look at aspects of crime that you don't tend to look at.

I'm terrified to get married. I'm not getting married till my gay friends can.