I've never been the president of anything, but I would imagine that in ways it could be a very isolating experience, because you're ensconced in the halls of power and every stop and visit is so orchestrated and someone is choosing what you're going to see.

It felt like an indulgence. Going back was painful, but, at the same time, it was nice to live with them again for a few pages. I got to live with my brother again for the entire book. Of course as I'm writing the book, I'm getting closer and closer to the end and I know what that means. I knew exactly where I was heading. It was really difficult, but it was nice to make them come alive for those scenes. It was good.

I was thinking about the difference in voice between the different characters. Each voice has to be unique. Hypothetically you should be able to read each chapter without the heading that tells you who is telling the story.

I read the last Harry Potter, and I cried for at least the last 70 pages. Awful! I was curled into a ball and I just kept sobbing. It was embarrassing. I was loud, and I just kept wiping tears away so I could see the page.

I think that voodoo as a spiritual tradition has been demonized for so long in popular culture. I wanted to write against that and write a character who practiced that spiritual tradition who was not evil and intent on creating zombies or causing pain through voodoo dolls or whatever.

Black people in the US are told all the time, from all aspects, that they're nothing, that they're less than. And of course that bears fruit, but no one wants to shoulder part of the blame. A lot of people here can't see around their own family's history. They don't want to see that where they come from and the people they surround themselves with might have played a role in all this. This is all part of our national myth about the individual. We think that a lack of success comes from the individual not working hard enough. A lot of people in this country really believe that.

Living in the rural South, you sometimes feel trapped, like you don't have any options. It grinds people down, and of course it leads to substance abuse. I see it all around me. So many people in my family, probably more than 50 percent, have had substance abuse problems, either currently or in the past. It's so personal and immediate to me.