Hunter and his team start to go through the murders but the madness that is at the fringes of the Ripper hunt starts to infect Hunter himself.
Dreams detailing murders are shared by his wife and by himself. others in his team start to crack up under the strain of the Ripper hunt and the dangers that trapped Whitehead and some of the characters from the first two books start to come out of the shadows for Hunter.
In terms of portraying a pyschological as well as literal thriller this is growing in intensity and someone is going to crack up and make a mistake. You sense that it is a battle between the Ripper and Hunter with the pressure so far all coming on the policeman.
More to come...