Loci

Loci is not a single city but a federation of infinite interior spaces. To the casual observer, it appears as a marketplace where people trade nothing but whispers. "I will give you a deck of cards," says one, "if you give me the sequence of the first hundred stars." But the trade is not of objects; it is of places. The inhabitants of Loci do not write down their history; they build it into the architecture of their minds.

Every citizen carries a cathedral in their head. To remember a grocery list, they place a loaf of bread on the altar and a bottle of milk in the font. To remember a history of the world, they construct a palace of a thousand rooms, populating each with grotesque statues that hold dates in their teeth. The city is silent, for everyone is walking through their own private halls, inspecting the dusty artifacts of their recollection.

Sometimes, a traveler will stumble upon a "Memory Palace" that has been abandoned—a mental structure externalized into the physical world. Here, they might find a room filled with 52 floating kings and queens, or a corridor where every tile is a number. The danger of Loci is not getting lost, but forgetting that the city outside is real, and that the one inside, however perfect, is made only of air and will.