A full story centering on Win, the best friend of Cobin's long time character Myron Bolitar. Enjoyable, you really get to know his character much better than when he is on the periphery in the Myron novels. Myron doesn't physically appear in this book, although his presence is definitely felt. He's one of the few people Win really cares about. I found the resolution to this mystery a bit convoluted, lots of variables and twists involved. Enjoyable read.