Although she is introduced somewhat late in the book, Tess will become one of the most important subjects Macy profiles, in part because Macy goes into greater depth with her story than any of the others. Part of what makes Tess’s story interesting is that, as a “middleman,” her experience is fairly average, and she was in regular contact with both users and dealers. But Macy is careful not to reduce people to stereotyped labels like “addict,” and Macy goes deep on the specifics of Tess’s life in order to demonstrate how all people struggling with addiction are more than just a statistic or a label.