Charlotte and Thomas Pitt are called out of London, to Ireland and France respectively, each chasing the person or group behind a sinister plot aimed directly at taking down the British government and Queen Victoria herself.

Edgar Roy, an alleged serial killer held in a fortress-like Federal Supermax facility, is awaiting trial. Sean King and Michelle Maxwell are called in by Roy's attorney, Sean's old friend Bergin, to help work the case. But en route to their first meeting with Bergin, Sean and Michelle find him murdered.

Young World War I veteran Freddie Watson meets an enigmatic young woman one night while traveling through the French Pyrenees. By dawn, he will have unearthed a tragic mystery that goes back centuries, and discovered his own role in the life of this old remote town. 

It's 1960, and David Swain is two years into his life sentence for murdering the lover of his ex-girlfriend, Katya. In the dead of night, David escapes, and Katya is found murdered. Inspector Trave of the Oxford Police heads the manhunt for David.