'Lustrum' is the new novel from Robert Harris, the bestselling author of 'Imperium'. Here he returns to ancient Rome for a political tale of ambition and corruption, beginning on the eve of Cicero's inauguration as consul. The story is told by Tiro, Cicero's personal secretary and slave, who takes us through the complexities of assorted power struggles as Cicero finds himself defending, as only he can, the Republic itself against villains, crooks, would-be dictators and all manner of political animals roaming Rome around 63BC.