Book IV, "Strike of the Cobra"

Lida Mae slept with the light on. It is not enough, however, to ward off the killer who enters her room on a cool spring night and violently takes her life. Is he there to avenge her crimes from long ago? Or is there another reason that Cobra – the most vicious assassin since Jack the Ripper – has chosen her? Scotland Yard’s Chief Inspector begins a desperate chase to stop the man before he can kill again. That chase takes them from Ireland to Scotland, and finally to London, where Cobra carries out a murder that rocks the entire continent. Who is behind it? A serial killer on a random spree? Or could it be that the mastermind pulling the strings is even more vicious than the assassin himself?