Elias sat in the silence of the archive. Then, beneath his feet, through the floorboards of the bunker-city he had lived in his entire life, he felt it. A low, rhythmic hum.

The naming convention was Bureau of Resource and Housing Development (BRHD). The "GR" stood for Geo-Restructuring. But "ACEAGE1"? That didn’t match any known project code. Elias clicked play.

The "Ace Age" wasn't a typo for Ice Age. It stood for . The project had worked too well. It hadn't just cooled the planet; it had locked the atmosphere into a static, unchanging state of permafrost.

Suddenly, the video glitched. A face appeared on screen—a woman with frost-bitten cheeks and eyes that looked like they hadn't seen a sunset in years.