Apparently this book is widely compared to Dan Brown's The Da Vinci Code. This book is perfect for a summer read if you're looking for something with an intense plot and not much else.I was annoyed with the author's attempt to make the book more authentic by using sentences in foreign languages (German, Italian, French, Portuguese). If you do that, at least do it right. Apart from German which I don't speak, there were mistakes in the other languages, the sentences were direct translations from English etc.Even in English, the language is sometimes very stilted and awkward.The flow of the novel is bearable when it comes to the action parts, all the rest sounds unnatural and awkward. The dialogs are huge info dumps and are annoying to read because you constantly try to pretend they sound like real life dialogs. They don't.And if you want a realistic story, this one is not for you. The implausible premise is hard to swallow if you don't have a very vivid imagination.