On the morning of the Exchange the city moved with the slow composure of something that had performed the same rites for generations. Smoke braided from chimneys like the hands of the old women who tied knots on the ends of offerings; vendors arranged their stall wares with the same mechanical care; children were shepherded from streets where the shadow over the fissure had thinned the light into a perpetual dusk. Above the square the stone teeth of the old market watched, rimed with the soot of a hundred winters. At the center of that watch was the yawning gorge, a seam in the earth that did not belong to the present and yet took from it with ritual regularity.
Mara Vell moved among the lined bodies like an undertaker of particulars, a woman in a coat of dark wool whose pockets held the tools of her office: sealed phials, bone slates, narrow cases that glowed faintly with collected recollections. She had the steadiness of someone who had learned the precise choreography of grief and necessity. Her hands had catalogued names quicker than any tongue could pronounce them; her ledger—kept in a private way apart from public records—held the architecture of the city’s forgetting. People trusted her with the things they feared losing: first words, the color of an old lover’s eyes, the scent of a mother's kitchen. In exchange, to keep the living safe and the city breathing, they surrendered those traces to the fissure.
The Exchange was both market and sacrament. Men with funeral cloths stood at the railings, priests chanted a low sequence that sounded like wind through copper, and a line of bearers moved with the solemnity of those carrying vital organs. Each offering was a small, miraculous dishonoring: a memory hermetically sealed in a glass bulb, a strip of thin cedar etched with a name, a fold of cloth that still smelled faintly of a life lived. Tokens were offered and accepted; the fissure drank with the slow patience of a thing that expected payment. For decades, the bargain had held: the city fed its darkness and the darkness fed back a measure of prosperity, a crooked mercy that bought back mornings without hunger or consternation.
Mara's role was administrative but sacramental. She read the labels at the rail, tested a handful of phials with an instrument of black glass that thrummed when a memory was intact. She watched the bearers move high and low through queues of people who had labored to gather their histories into tidy shapes. In her chest sat a chamber of private rituals too small for the public eye: a memory kept like a coin in a hidden casket, a face she could not bring herself to memorialize because the fissure had taken it long ago. She had learned the lines of loss well enough to perform them for others, to hand them compass-points of consolation when the void took without explanation.