Tana French's "Broken Harbour"

Just finished another great read, Tana French's "Broken Harbour", (http://www.amazon.co.uk/Broken-Harbour-Tana-French/dp/1444705105) which I was so ready to read I ordered it from amazon uk which had about a month earlier release date than amazon usa (http://www.amazon.com/Broken-Harbour-Tana-French/dp/1444705105). I can't say enough how much I have enjoyed her first three books and this fourth installment about the Dublin Murder Squad. If you have read any of the others, her books are about a talented detective on the squad who gets some case with a personal attachment. As the book goes along you watch the case get solved and the detective's life and career get unraveled with plenty of surprises along the way. So far the detective in the story has been introduced and a major part of the story in the previous book. I am curious to know who is up next from this story (please, not Quigley).