Sci-fi/fantasy in the mold of The Shadow of the Torturer
by Gene Wolfe. This is one of the best books I've read in a while. The voice of the novel is Physiognomist First Class Cley. He works for a Hitler-like master named Drachton Below. Cley's job involves judging the character of others by reading their physiognomy. There are strict mathematical formulas for determining guilt, innocence or even what one may do in the future, but basically it comes down to if one looks like an imbecile they are therefore an imbecile. Master Below is intent on peopling his city with perfect human specimens. Sound familiar? Physiognomist Cley is sort of a Dr. Mengela, but after being convicted himself to serve eternity in the sulfur mines he has a change of heart. There are many repulsive aspects to this tale, but I found that gave it a grounding in reality.