I---: Antonov An 990

On that night, the I--- Antonov An-990 rose from a hidden airstrip near the Aral Sea. It reached operational altitude at 02:00 local time. The ground crew, wearing double-layered ear defenders, watched the altimeter tick past 15,000 meters. The order came over the scrambled channel: “Carrier, this is Hearth. Execute Lullaby.”

The pilot, a weathered woman named Katerina, flipped the master resonator switch. i--- Antonov An 990

It sounds like an engine, idling.

During the testing phase over the Siberian Exclusion Zone, pilots reported a curious side effect. When the 990 activated its primary resonator, birds fell from the sky not dead, but asleep. Rivers below the flight path stopped flowing—the vibration stilled the meniscus of water into glass. On the ground, listening posts heard nothing. But their teeth ached. Their dreams turned into repeating loops of a single, low C note. On that night, the I--- Antonov An-990 rose

Then, the resonance loop collapsed.