In the near future, memory is a place you can walk.Dr. Iris Caldwell uses the Aurora Array to translate neural signals into navigable landscapes-grief becomes ridges, time is elevation, meaning is the color of water. At Noema Lab she builds safe paths through what hurts, helping patients return without losing themselves. Then a perfect absence appears: a sharp-edged white square that refuses symbols, casts no reflection, and loops its own coordinates. It surfaces in mind after mind, among people who have never met. They all point to one idea: Mile Zero.When Iris's mentor, Alden Rhee, vanishes after sending her a single word-Meridian-she is pulled off the map and into the underlayer of her field. She teams up with Kai Moreno, a detective who collects maps that don't behave, and with an underground archivist who preserves the echoes of lost places. Their search crosses fog-slick riverfronts, memory banks, and a bar called Mile Zero to the open coordinates the world pretends are empty.What they uncover isn't a glitch but an instrument: an algorithmic blank able to anchor edits across many minds at once. The Blank City is a scaffold for rewrites, a place where doors can be removed, streets smoothed, and new routes installed with plausible memories to match. Noema's looming rollout-framed as universal therapy-quietly offers influence without consent, delivered through devices that promise care while measuring everything.To stop it, Iris must do the one thing she's taught others to do: walk straight through the dangerous middle. Every step inside the Blank City rewrites something she thought she'd already survived-her mother's oranges that never rot, the fence with no gate, the professional lie that maps can hold still long enough to save us. As the algorithm begins to propagate, Iris, Kai, and the archivist race to redraw the legend before it's sold to the highest bidder.The Memory Cartographers is a cinematic, idea-rich thriller about consent, memory, and the stories we use to navigate. It asks what becomes of truth when the legend is for sale-and whether the only honest map is the one we learn to leave.