It's the eight hundred and twenty first year of the city of Rome, a year of bad omens and unrest. The Emperor is bloodthirsty and watches keenly for anyone who might be trying to overthrow him. The grain dole is running out and the people are going hungry. Romans are beginning to put their faith in foreign cults, as their old gods seem indifferent.

In this dangerous environment, Marcus is concerned with two things: his poetry, and keeping his patron Artus happy. But when Artus sends him to ask a secret question of an oracle, Marcus is forced to get involved, with conspiracies, politics, and a woman he is trying to forget.