The file wasn't a story of the past—it was the blueprint for what Elias had to do next to keep the floor of the world from falling through.

As Elias finished reading, the video on his screen changed. The candle went out. The rain sound stopped. In its place was a rhythmic, pulsing hum that made the glass of his water bottle vibrate.

He replayed the video. This time, he noticed something in the reflection of the brass key. For a split second, the cameraman’s face was visible. It wasn’t a researcher; it was a man Elias recognized from his own family albums—his grandfather, Julian, who had supposedly died in a car accident in 1991. The Hidden Layer