The Ghost Tank had done what reverb always does: it revealed what was already there. Every room has its ghosts. But maximum reverb doesn’t just echo them—it amplifies them into existence.

Lena yanked off her headphones. But the scream followed.

That night, Lena drove home in silence. She didn’t turn on the radio. Didn’t hum. When she walked into her apartment, she stood in the center of the living room and clapped once.

Then the feedback peaked. A digital shriek that collapsed into a flatline hum. The meters dropped to zero.

Lena’s hands hovered over the fader. She could cut the send. Mute the aux. But the scream was already in the building’s bones. She looked at the waveform on her screen: a solid wall of gray, no attack, no decay. A sound that had achieved immortality.

The echo lasted forty-seven seconds.

She did the only thing left. She patched the output back into the input. A feedback loop. Not to cancel the reverb, but to bury it under itself, an avalanche of noise so dense that it would become, finally, silence.