The central mystery is good -- a version of the locked-room puzzle. The solution of the mystery emerges slowly, as important information becomes available to the detective and the reader, and thus the form of the novel is closer to the modern police procedural than the classic detective story. One of the triumphs of the novel is the characterization of the principal detective figure, Pliny the Younger, who is bright, fallible, idealistic, vain, ambitious, sensitive, and capable of change. The other triumph is the richness of the setting, which gave me the delightful feeling that I was not only witnessing the solving of a murder mystery, but learning much about life in Rome in the late 1st century AD. I hope there will be another Plinius Secundus mystery very soon, for I want to see more of that character, and immerse myself again in his Roman world.