The fable nature of the piece comes not just from the symbolic, magic-realism-with-a-clear-message plot. It's accentuated in all sorts of little ways: for instance, names are conspicuously absent: the city is the city, the country is the country, the man who went blind in his car is referred to throughout as 'the first man'. His companions are the old man, the doctor, the doctor's wife, the pretty young woman, the young boy, the first man's wife. You may also note a gender discrepancy that I preferred while reading to ascribe to a kind of old-fashionedness but which could also be felt as just an old man's sexism. But anyhow, the effect is of essentializing everyone and everything: the soldier, the rapist, the man who reads braille. It works well, as he's done it. He doesn't mean to be writing about idiosyncrasies.
Another feature of the book is a frequently encountered editorial voice that is neither character's nor author's. This voice's statements are always general and blunt. For instance,
they could just as easily have had their provisions cut off for ever, as is only just when someone dares to bite the hand that feeds them.The hand-biters are the members of one ward of the mental hospital turned internment camp who send eight representatives to peacefully complain about how little food the blind mafia has been giving them. Or, when a group encounters a man and woman who are joking lewdly, the abstract voice wonders whether these two could be married and answers surely not, because "no married couple would say these things in public." It is possible that these are intended to be character's thoughts, but if so Saramago is switching in and out of them with particularly little signal. But he definitely does that too, like in the line: "Shortly there would be darkness all around and no one will have to be embarrassed." I'm assuming the abrupt tense change isn't a horrible translation error and so I assume that we've switched from the third person to the first, with our only marker being that change from the past conditional to the future simple. But I don't think the first two sentences are examples of that, because it's hard to know in either context whom to attribute the thought to. Throughout, there's this extra narrator who is a cynical and extremely convention-bound omniscient observer.
Anyhow, I like fables and I'm a big fan of the sci-fi action thriller. There's something very compelling about the book -- I'm easily grossed out but I had to keep reading long after my bedtime because I was so wrapped up in it. And sometimes because I just needed to have the characters be out of the horrible spot they were in before I could safely close my eyes to sleep.