As always, Hero Jarvis plays an important part in the story, as do St. Cyr's physician friend Dr. Gibson. For evil pomposity, we get St. Cyr's father-in-law Charles, Lord Jarvis, and the bloated Prince Regent, Prinny. The great and good are contrasted through Hero's research with the mass of unwashed, uneducated, tragic humans upon whose backs the entire system rode.
I am totally hooked on this series. They should be read in order if only to keep track of the twists and turns Devlin takes in his search for the truth about his own heritage. The first book will grab you, and the rest is gripping reading and a series of crimes that illuminate the glittering, glamorous, grisly, gruesome era. As always, the rich and connected had it good and the rest did not. Harris brings it to vivid life. A 5+, what else?