This is Steven Saylor's second book in the Gordianus the Finder series. Set in first century B.C. Rome, it breathes life into very remote historical figures while weaving a great murder mystery. This book centers on Marcus Crassus, the richest man in Rome, and probably the richest man in the history of mankind. Unless you are a historian, like me, you probably never heard of him, but you did hear about the man he defeated---Spartacus. Both history buffs and mystery lovers will love this book and this series.
This is a mystery story set in the ancient Roman Empire. If that appeals to you you will probably like it. It's well written and well thought out. I find both Rome and mysteries interesting, but not together, apparently.