In case there's somebody who hasn't heard of Wishart's series, there are now thirteen volumes out, with Marcus Corvinus as the Philip Marlowe of Rome during the times of Tiberius. Corvinus is actually such a splitting Marlowe image, that we'd have to wait for a new Bogart to be born, before we can hope to see an adaptation of this series on screen.
I'm not sure – yet – how the Corvinus series relates to the other whodunits set in ancient Rome which have flooded the shelves recently, I'd have to go through at least three more volumes for an accurate evaluation, but I'm very excited about how it started out. I guess it's because I was perfectly prepared to be disappointed after the first twenty pages or so, partly because the main line of the plot is very uncharacteristic to the Roman world (not telling you why – go read the book), and partly because of some vocabulary issues – some terms that seem adapted to the modern world in an awkward way. I was already expecting to see Corvinus going to the mall and ordering a martini, but I was wrong.
The political mystery to be solved by the hero is not badly chosen, either, as the causes for Ovid's exile to Tomis are still unknown today. So I'd say Ovid himself would have approved of this book, despite the lack of proper hexameters. I, for one, am looking forward to reading the rest of the series.