The Sovereign series is set in future Europe, in a world in which the human population has been decimated by a blood-borne virus so that only one, small city remains. That city, the Blue, is controlled by a vampiric race called the Silver.
Beyond its boundaries, the world is contaminated by a vaccine that was developed in order to combat the virus.
The protagonists of the series are Julia, a human teenager, and Cameron, a Silver who is millennia old. The series follows them as they address the corruption of the Blue and stand against an ancient enemy who wants to take control of it for himself. Their endeavours bring them face to face with the zombies that the vaccine should have eradicated, and force Julia to reassess everything she thought she knew about the world.
The series is targeted at young adults. The books contain horror, profanity, M/F and M/M romance, and some limited sexual content.
The Sovereign series is a standalone sequel trilogy to the Solis Invicti series.