Shadow and Claw by Gene Wolfe
The foreword describes how the author found a book in a strange language, eventually deciphered it, and then translated the concepts as best possible. The resultant book chronicles the life of a torturer in perversely literate English.
Wolfe ended up not having the stomach to finish what he started. Which is certainly understandable as this is a beast of a conceit.
Subjectively at least, there is a great difference between detention facilities to which one has become accustomed and those to which one has not. If I had been entering our own oubliette, I would have felt I was, quite literally, coming home - perhaps coming home to die, but coming home nevertheless. Although I would have realized in the abstract that our winding metal corridors and narrow gray doors might hold horror for the men and women confined there, I would have felt nothing of that horror myself, and if one of them had suggested I should, I would have been quick to point out their various comforts - clean sheets and ample blankets, regular meals, adequate light, privacy that was scarcely ever interrupted, and so on.
"The city keeps creeping upriver. The armigers and optimates want purer water not that they drink it, but for their fishponds, and for bathing and boating. Then too, anyone living too near the sea is always somewhat suspect. So the lowest parts, where the water's the worst, are gradually given up. In the end the law goes, and those who stay behind are afraid to kindle a fire for fear of what the smoke may draw down on them."
The crowd parted like water before the drivers' whips, mothers clasping their children as they fled, soldiers vaulting on their spears to the safety of windowsills.
Those ages that have outlawed it (and many hundreds have, by my reading) have replaced it largely with murder - and with just such murders, by and large, as monomachy seems designed to prevent: murders resulting from quarrels among families, friends, and acquaintances. In these cases two die instead of one, for the law tracks down the slayer (a person not by disposition a criminal but by chance) and slays him, as though his death would restore his victim's life. Thus if, say, a thousand legal combats between individuals resulted in a thousand deaths (which is very unlikely, since most such combats do not terminate in death) but prevented five hundred murders, the state would be no worse. Further, the survivor of such a combat is likely to be the individual most suited to defending the state, and also the most suited to engendering healthy children; while there is no survivor of most murders, and the murderer (were he to survive) is likely to be only vicious, and not strong, quick, or intelligent. And yet how readily this practice lends itself to intrigue.
"There's to be a fair, you know. The alcalde announced it. He's got a good head for business, our alcalde has. You take the average man—he'd see you here in my parlor and never think of a thing. Or at least, no more than to have you put an end to Morwenna. Not ours! He sees things. He sees the possibilities of them. You might say that in the wink of an eye the whole fair sprang up out of his head, colored tents and ribbons, roast meat and spun sugar, all together. Today? Why today we'll open the sealed house and pull Barnoch out like a badger. That will warm them up, that will draw them for leagues around. Then we'll watch you do for Morwenna and that country fellow. Tomorrow you'll begin on Barnoch—hot irons you start with usually, don't you? And everybody will want to be there. The day after, finish him off and fold the tents. It doesn't do to let them hang about too long after they've spent their money, or they begin to beg and fight and so on. All well planned, all well thought out! There's an alcalde for you!"
As soon as we were away from the bustle of the tents, where jugglers tossed their knives and acrobats their children, we were wrapped in the stillness of the gardens.
It is my nature, my joy and my curse, to forget nothing. Every rattling chain and whistling wind, every sight, smell, and taste, remains changeless in my mind, and though I know it is not so with everyone, I cannot imagine what it can mean to be otherwise, as if one had slept when in fact an experience is merely remote.