Roma Nova – the last remnant of the Roman Empire that has survived into the 21st century – is at peace. Carina Mitela, the heir of a leading family, but choosing the life of an officer in the Praetorian Guard Special Forces, is not so sure.

She senses danger crawling towards her when she encounters a strangely self-possessed member of the unit hosting their exchange exercise in Britain. When a blackmailing letter arrives from a woman claiming to be her husband Conrad's lost daughter and Conrad tries to shut Carina out, she knows the threat is real.

Trying to resolve a young man's indiscretion twenty-five years before turns into a nightmare that not only threatens to destroy all the Mitelae but also attacks the core of the imperial family itself. With her enemy holding a gun to the head of the heir to the imperial throne, Carina has to make the hardest decision of her life...