"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."