It took me some time to track this book down since, before Christmas, it seemed conspicuous by its absence from the shelves. Marketing I suppose! I loved Steven Saylor's previous book in the series - "Roma" - and had looked forward to reading this with some relish. I suppose it is inevitable that under such circumstances the reality was a little disappointing, but there are some very real flaws in this work. Perhaps the most annoying was the habit of characters explaining situations that were obviously well known to those they were speaking to. You know the sort of thing - "As you know Pinarius.... " A clumsy device that someone with Steven Saylor's writing experience should avoid. Some of the plot was a little contrived but, given the strange twists and turns in Roman history, not so much as to make this work untenable. As a device to describe Roman history from Augustus to Hadrian from the point of view of witnesses not directly connected to the various imperial families it does work, though somewhat awkwardly at times. Still, a creditable effort which, despite its flaws, I enjoyed. Is it worth the effort? Yes it is and I look forward to the next installment that must inevitably be in the pipeline.