Today I borrowed from the library Arms of Nemesis by Steven Saylor,it's the second of the series of historical mysteries featuring Gordianus the Finder and set in the ancient Rome of Cicero and Caesar.
"As the Spartacus slave revolt rages through Italy, Gordianus is summoned to the Bay of Naples by Rome’s richest man, Marcus Crassus. Two escaped slaves appear to have murdered their master...and unless Gordianus can prove otherwise, every slave in the household will be slaughtered in retribution".
It's the first book of this series that I read,I hope it's ok.