I love the series, but this particular outing left me cold. It beggars belief that a book published in 2005 could still be tramping through the well-churned mud of internet newsgroups and technophobic police officers. The last book I read that was so laboured when it came to information technology was published in 1997. This instant datedness aside, the book also suffers from the character of Inspector Ikmen both being shoved to one side and being cast as someone who openly believes in another man being a "magician" - with no explanation. In earlier books his 'feelings' about cases were gently ascribed to his mother being a witch without stretching credibility too much - in this book there seems to be an assumption from the beginning that the reader has bought into this. I didn't, and found it both annoying and credulous.
As I say, I loved the series and love Istanbul, but how this outing won an award bewilders me. Definitely the weakest of the lot - reminds me a little of how Ruth Rendell became gradually unreadable as she got older and crankier and filled every novel with Daily Mailesque vitriol. At some point, as an author, if you don't understand something, you have to accept that might be your fault, rather than write about it like it's mystifyingly incomprehensible to anyone over the age of 25.