Enjoyable mystery centered in Colorado during the wintertime. Janeway calls upon his skills as a former police officer (keeping himself alert during stakeouts) and as a expert bookseller (assessing the worth of rare books). There are some nice twists and a few red herrings to throw Janeway and the reader off the trail, but all is resolved at the end.
I enjoyed this book. I liked the mix of human and machine and the way Charlie became more human as he replaced parts of himself.