The (true) story on which this novel is based -- the decades-long love affair between the impoverished nobleman/unlikely emperor Vespasian and the freed slave Caenis -- is inherently compelling, and the author of the "Falco" mysteries seems like the perfect writer to retell it. Unfortunately, I felt that the novel fell flat. Choosing to tell the story in the third person (why?) meant that Davis spent far too much time on rather dry exposition -- in the first few chapters there were about 10 pages of background for every page of dialog. She falls into this same habit in some of the Falco novels (e.g. "The Iron Hand of Mars"), but there the expository bits are more fun because they're told in the narrator's cynical, wise-cracking voice. The historical characters are engaging enough when they're allowed to speak for themselves -- the straight-arrow Vespasian (I kept seeing John Wayne playing him), the loving but all-too-intelligent Caenis, her sorely tried royal mistress Antonia -- and even the made-up ones, such as her gold-digger friend Veronica and her manipulative mentor Narcissus, have considerable depth. Occasional scenes -- such as Vespasian's triumphal return from Britain -- came vividly alive, and the conclusion kept me up past my bedtime. But I suspect that Davis, in trying to write a "serious" novel rather than Philip Marlowe in a toga, went too far in the opposite direction. She seems to have forgotten a couple of basic principles of fiction writing: (1) A novel should be entertaining, and (2) Show, don't tell. I would have found the story much more absorbing if it had been told from Caenis' point of view; I'm sorry Davis decided to play it safe and go for Victorian omniscience and excruciating dignity.