The monitor in the corner of the lab flickered to life, cutting through the heavy silence of the night shift. It wasn't supposed to be receiving anything; the "HDTV4" unit was a prototype, a deep-space receiver designed to capture frequencies the human eye usually ignores.

Elias grabbed his flashlight. The prototype had found something in the static of the old world, and according to the glowing screen, the door to Room 358 was no longer locked—it was an invitation.

As the static cleared, the "HDTV4" didn't show a room or a person. Instead, it displayed a series of hyper-vibrant geometric patterns that seemed to vibrate at a frequency he could feel in his teeth. It wasn't a broadcast; it was a map. Every time the sequence "1 358" flashed, the map shifted, revealing a hidden layer of the building’s architecture that shouldn't exist.

On the screen, the numbers pulsed in a rhythmic, neon-blue glow. Elias leaned forward, his coffee forgotten. In the basement of the research wing, Room 358 was supposed to be empty—a decommissioned storage space for old analog gear. Yet, the signal was originating from right beneath his feet.