When several major political figures die mysteriously, officials declare the deaths are from natural causes. However, when the German vice chancellor suddenly dies, a drone is spotted hovering over the scene. This raises questions about all the high-profile deaths. The Covert Eyes Team is tasked to investigate. With the help of Dr. Isabella Marin, an expert in the inscrutable Voynich Manuscript and cryptophasia (twin language), Nicolas and Michaela home in on Roman Ardelean, a wealthy cybersecurity genius and a descendant of Vlad Dracul III--who came to be known as Dracula. Ardelean believes the Voynich Manuscript will unlock the blood secret to curing his severely ill twin brother and is willing to murder anyone who gets in his way, including Nicholas and Michaela. Along with MI5, they race against the clock to find Ardelean before he unleashes a devastating attack on London, destroying those he believes betrayed him.