In terms of why everything is different, each book is different than the one before because I'm so bored of what I just finished I want to work on something different. The next book becomes an antidote to what I did before.

I always have a few ideas that are percolating, and then after I've finished a book and it's a year later, and things are sort of festering and things are disgusting in my house and I have to get back to work, whatever project I keep thinking about is the one I end up working on. Sort of a very simple process of elimination.

In the 1930s, the government paid writers to interview 80- and 90-year-old former slaves, and I read those accounts. I came away realizing - not surprisingly - that many slave masters were sadists who spent a lot of time thinking up creative ways of hurting people.

In other words, fiction is payback for those who have wronged you.

Best to let the broken glass be broken glass, let it splinter into smaller pieces and dust and scatter. Let the cracks between things widen until they are no longer cracks but the new places for things. That was where they were now. The world wasn't ending: it had ended and now they were in the new place. They could not recognize it because they had never seen it before.

Being a slave meant never having the stability of knowing your family would be together as many years as God designed it to be. It meant you could come back from picking cotton in a field to find that your children are gone, your husband's gone, your mother's gone. It meant knowing you are property that could be sold to the highest bidder, of value only to continue to support the plantation economy.

What does the perfect elevator look like, the one that will deliver us from the cities we suffer now, these stunted shacks? We don't know because we can't see inside it, it's something we cannot imagine, like the shape of angels' teeth. It's a black box.