Gordianus has washed his hands of politics and moved his family to a farm in Etruria, hoping to get away from the dirt and danger of Rome. But when his old friend Cicero enlists the finder in an elaborate plot to control Catilina, Gordianus is drawn back into a familiar world. Now caught in a cloak-and-dagger political struggle for the fate of the Republic, Gordianus finds himself strangely drawn to the controversial candidate. When a headless corpse ominously appears on his farm, Gordianus knows he must unlock the secret of Catilina's Riddle before Rome tears herself apart. This is the third novel in the Roma Sub Rosa-series.