The leopard (2011) by Jo Nesbo Trans. Don Bartlett

In this electrifying new addition to Jo Nesbø’s internationally acclaimed series, Harry Hole must confront the darkest demons in his city—and in himself.

Inspector Harry Hole has retreated to Hong Kong, escaping the trauma of his last case in squalid opium dens, when two young women are found dead in Oslo, both drowned in their own blood. Media coverage quickly reaches a fever pitch. There are no clues, the police investigation is stalled, and Harry—the one man who might be able to help—can’t be found. After he returns to Oslo, the killer strikes again, Harry’s instincts take over, and nothing can keep him from the investigation, though there is little to go on. Worse, he will soon come to understand that he is dealing with a psychopath who will put him to the test, both professionally and personally as never before. (Goodreads)., as 

The redeemer (2009) Jo Nesbo

Harry Hole is a"maverick detective with a drink problem and predilection for pop music, solving murder cases in the underbelly of a beautiful city: Jo Nesbø's Harry Hole is so Rebus it hurts. But for all the crime cliches and hilarious cliffhangers, The Redeemer is an enjoyably chilly manhunt through Oslo's wintry streets, as the curmudgeonly hero tracks down a Croatian hitman who has seemingly shot the wrong brother. For once, this isn't a gangland murder; it is set instead amid the more refined circles of the Norwegian Salvation Army. But what could have been a taut 350-page thriller is bogged down with reams of unnecessary explanation and masses of psychiatric babble. This fourth instalment in the Hole series is often great fun, but overlong.

The Observer, Saturday 24 October 2009  Ben East.

The Headhunters (2011) by Jo Nesbo

Roger Brown is a corporate headhunter, in fact, one of the best.  But to accommodate his wife's art gallery, he steals art from clients. However, a particular client, Clas Greve, is one step ahead of Roger, seducing his wife to get even closer to Roger. Two murders and the theft of a Reuben's painting creates a situation that comes crashing down on all. (Goodreads)

I found the premise of the novel encouraging, however, as events moved along, the action spun out of control.  Jo Nesbo disappointed me with this book, but he has amply compensated in others.