Mira sat in the dark. She looked at her own reflection in the window again. This time, her reflection wasn’t smiling. It was crying. But Mira’s own face was dry.

The app icon was a simple, stark white circle with a black aperture iris in the center. No name. She tapped it.

She dropped the phone.

It began not with a download link, but with a question posted on a dead forum dedicated to "Abandoned Mobile Technologies." The user, handle "Phantom_Decoder," wrote: "Does anyone still have the original .apk for Qc016? Not the mirrors, not the 'pro' version from 2019. The original, v1.0, from the now-defunct QC Labs. My father used it on a phone we found in his things after he passed. I need to see what he saw."

But the most disturbing feature—the one her father had annotated in a hidden memo on his phone—was the "Depth Scan" mode. Activated by triple-tapping the viewfinder, it didn't just show echoes. It showed layers . You could slide a toggle from "Layer 0" (present reality) to "Layer -1," "Layer -2," and so on, descending into what the app’s debug log called "the sediment of time."

No splash screen. No permission requests. The viewfinder opened instantly. But it wasn’t the usual crisp feed from the phone’s lens. The image was grainy, overlaid with a faint, oscillating green grid. And in the center of her empty living room, where her cat had been sleeping a moment ago, the app showed a second cat—but this one was lying still, eyes closed, as if dead. She looked up. The real cat was awake, purring, alive. She looked back at the screen. The second cat was gone.