What do You think about SPQR VIII: The River God's Vengeance (2005)?
A satisfying volume of the SPQR series. The characters continue to grow and solidify and by this book the main character of Decius is more mature and solid a figure. The slow development of Roman history in the series is satisfying, particularly for someone familiar with the broad events of the tumultuous time period.Roberts deftly handles the complex politics of Rome and as much of its culture as we understand and can be conveyed in fiction. The matter-of-fact attitude toward religion and supernatural is well done, as is the limited understanding of science and technology (more advanced than many modern people would think).Overall the mystery is not the best in the series, but the narration and characters carry the story well and the conclusion in the flood is very satisfying.
—Christopher Taylor