I have not read the previous novel Zafon, but I admit I was conquered from the first lines of it with a style that imposes wonderfully gothic atmosphere of the characters and the Barcelona of the 20s, an atmosphere worthy of Shelley or Stoker. The plot, meanwhile, remains classical, flirting as it should with the myth of Faust, with this writer signing a pact with a strange French editor to write THE book that will blow the world, and who will pay the price .. . The last part of the book is a bit sluggish in my opinion, the book is slowing, however it is caught as it should and is closed the more than 500 pages are quite satisfied because travel.