2020/125: Piranesi -- Susanna Clarke

2020/125: Piranesi -- Susanna Clarke

... at the very point at which the Other has declared he will kill me if I become mad, I have discovered that I am mad already! Or, if not mad now, then certainly I have been mad in the past. I was mad when I wrote those entries! [loc. 1490]

There are, as far as Piranesi knows, two living humans in the World: himself, and the Other. ( no major spoilers )