The Great Sentence is nearly a full page long in my hardcover edition of this book. And here's how it goes (accompanied by the single considerably shorter sentence that is its partner-in-paragraph):
Monstrously ancient structures of an imposing nature are not in the habit of having been constructed by men. Nor was the Castle Timeless an exception, as most vulnerable cities trace their origins to the architectural enterprise of gods and demi-gods, so the heavy structure in the Kannais which predated them all, and which had over the ages served every conceivable function from royal palace to prison, brothel to university, monastery to abandoned haunt of ghouls--changing even its shape, it was said, to accommodate its users' needs--so it informed with the echoes of all the ages, was muttered by some (with averted eyes and evil-forfending gesture) to be a relic of the days when the Elder Gods walked the earth, a point of their contact with it, a toy, a machine, or perhaps even a strangely living entity, fashioned by those higher powers whose vision transcended that of mankind--whom they had blessed or cursed with the spark of self-consciousness and the ache of curiosity that was the beginning of soul--as mankind's surpassed that of the hairy tree-dwellers counted by some as his kin, for purposes best known only to those shining folk whom it at least served somewhere, somehow as an interdimensional clubhouse before those beings absented themselves to felicity of a higher order, leaving behind the unripened fruits of their meddling in the affairs of otherwise satisfied simians; fashioned, in the opinion of some metaphysicians, on a timeless plane out of spiritual substances and, hence, not truly a part of this grosser world to which it had been transported, consisting as it did of equal measures of good and evil and their more interesting counterparts, love and hate, compounded with a beauty, therefore that was both sinister and beatific, possessed of an aura as absorbent as a psychic sponge and as discriminating, alive in the sense that a man with only a functioning portion of his right hemisphere might be said to live, and anchored in space and time by an act of will imperfect because divided, yet superior to normal earthly vicissitudes for all the unearthly reasons the metaphysician would not care to recite a second time.
And now I'm a few chapters into Changeling, which has much shorter sentences but makes up for that by being chock full o' Esteban Maroto illustrations.