Shadows in Bronze

It's the first century A. D. and Marcus Didius Falco, Ancient Rome's favorite son and sometime palace spy, has just been dealt a lousy blow from the gods: The beautiful, high-born Helena Justina has left him in the dust. So when the Emperor Vespasian calls upon him to investigate an act of treason, Falco is more than ready for a distraction. Disguised as an idle vacationer in the company of his best friend Petronius, Falco travels from the Isle of Capreae to Neapolis and all the way to the great city of Pompeii. . . where a whole new series of Herculean events-involving yet another conspiracy, and a fateful meeting with his beloved Helena-are about to erupt. . . .

Lindsey Davis' Shadows in Bronze is historical mystery at its best.