This is his second book after the phenomenal success of Shadow of the Wind, see review below.
To be honest I feel that this book is a shadow of "Shadow" , it is also set in Barcelona and very cleverly brings in and thus fills us in on some of the characters from the previous book. It is in effect a prequel.
It is beautifully written, very gothic, even surreal but for me just does not hit the right note. The first half of the novel was just fabulous but when he moved the story on and attempted to explain what was happening I did not feel it worked. I can get that I am perhaps not supposed to "get" the premise of the book, if the Boss an angel , the devil, etc but the ending where things were resolved, sort of , just left me flat............ and I had no idea what the message of the book was, if indeed there was one.