This intricate and complex novel was an amazing read. The time period is late Victorian but very different from the one in the history books. People emanate smoke from their bodies with any sinful, unclean, or fearful thoughts. Smoke comes in many colors and forms depending on the person and the nature of their thoughts. It permeates all aspects of society and culture. The story was fascinating and thought provoking but the characters were the best part of the story. I got attached and genuinely cared about them. This was so engrossing and wonderful. I can't recommend it more!