This was the second Steven Saylor book I have read and have since ordered all of the 'Roma Sub Rosa' Series.
In this book Saylor creates a first class mystery which seems to have a life of its own. Caesar is away from Rome engaging Pompey, his rival, in battle, leaving lesser mortals to care for the city and the citizens' problems - not altogether satisfactorily. Times are hard and there is widespread unrest against which Saylor weaves a tale of intrigue and deceit wherein from beginning to almost the end it is never clear what roles Cassandra, the young seeress, and the most important females of Rome play. Saylor's tapestry contains threads of the culture and society of the time integral to the mystery adding shadow and light to the tale. All in all this is a thoroughly interesting and enjoyable read.