Another Harry Hole novel – hurrah! The story is rather bloody: a serial killer in Oslo with vampirism (you will have to look up the precise meaning of this word). There are two main reasons why this book is a splendid read. First, there are long discussions of moral philosophy – why does Harry obsessively pursue the solution to murders, knowing the strain this obsession places on his relationships? And second, the plot is intricate and impossible to predict. This is great summer reading.