I read the book years ago and was most taken with Don Isidro, the vampire. I'm not a vampire lover in terms of books. However Don Isidro had some o..Show More »f the human characteristics he had in life such as honesty. He was, however a bit of a snob at times, having been born into Spanish aristicracy 300 or so years prior to the events in this book. I also like Professor James Asher even though he seemed to be a bit old for having been a spy. All in all, this was a good book. It kept my attention throughout.