One of the more complex Rebus novels (although the later books all involve a certain amount of complexity). I was a little disappointed by the ending, it had no great sense of closure, although that also is often the case with complex storylines. A good read, including an interesting portrayal of the G8 meeting which is an historical event of some interest. The relationship between Rebus and Siobhan has also gained a lot of complexity and nuance in these later books in the series.