Five years ago Ed Fagan, the serial killer known as the Night Hunter, disappeared. Since then nothing has been heard from him. But now a Dublin newspaper has received a letter claiming to be from Fagan with a chilling message: he s going to kill again. The Dublin Metropolitan Police are inclined to dismiss the letter as a hoax, but when the body of prostitute Mary Lynch is found, they believe the murderer may well be Fagan. Saxon, a former FBI agent who was writing a book about Fagan when he disappeared, is certain that the killer is someone else. So while DCS Grace Fitzgerald and her team sniff at a cold trail, Saxon must somehow convince them to look beyond the obvious. But in a city of shadows and secrets, that s never going to be easy especially when the truth is so unexpected that even the most astute detective could be shocked into carelessness in the moment of discovery. And carelessness, in the presence of a killer, can be costly...