The strigoi are evolving, becoming faster. Smarter. Eph's bioweapon is failing. He struggles to improve it while trying to work through the emotional fallout of the abduction of his son, Zack. As Setrakian and Quinlan attempt to crack the Lumen’s deepest-held secrets, Fet helps a Navy SEAL team in a deadly mission: search for the Master through the underground tunnels of New York.
