For something entirely different, try any of the Lindsey Davis
"Falco" series. Set in ancient Rome ( Flavian period ) , good historical accuracy as far as settings and political climate, written in first person, but in a modern style. There's humor , action, romance, and garum in the life of Marcus Didius Falco as the private detective tackles the deep mysteries of the empire.
The first book is "The Silver Pigs" , I believe