She reached for the Joy-Cons and found, instead of plastic, warmth. The controllers fit into her hands like gloves made for someone who had been waiting a long time. On the TV, the map zoomed in: an unfamiliar city pinpricked with markers that were not in the original game. Her apartment building. A red dot pulsed on her own street.

"I remember," Mr. Ibanez said suddenly, as if a filament had been relit. "You have to save the photos. Put them in the box. The world remembers by remembering us."

"People who remember," he answered simply. "And people who make other people remember."

News screens that had been broadcasting static now showed headlines again. A city bus driver lowered the partition and blinked as though waking from a dream. A woman at the bakery tasted the air and then cried, sharp and raw, over the size of her missing memory.

RomsLab's editing cursor hovered over them in the HUD: Verify. Modify. Patch. The A button now felt like a scalpel.

Back in her apartment, Margo cleared a space on the couch, booted the Switch, and slid the cartridge into the slot. The screen blinked. A pixelated warning flashed up — an odd, retro-styled message about an unofficial backup called “World War Z — RomsLab Edition.” Margo laughed; the flea-market vendor had probably been messing with her. Still, curiosity is a dangerous thing. She tapped “Load.”

Stories, she learned, behave like machines: left unattended, they rust; tended to, they run. The RomsLab cartridge had been a cracked key. It didn't fix the world by itself; it asked people to do the work it could not: to remember properly, to pass memories forward, to be careful with the versions they chose.

"Who are 'they'?" Margo asked.