Chapter 15 – The Sound of Survival

The air inside the facility felt heavy, thick with the kind of silence that came before something terrible. I sat hunched over the workbench, fingers numb from the cold as I tinkered with salvaged electronics. My mind was racing.

The creatures had retreated—but not because they were afraid. No, they were planning something. And if we didn't find a way to counter them, the next attack would be far worse.

Daniel was resting nearby, his breathing shallow but steady. He was healing, but slowly. Across the room, Lily was curled up beneath layers of blankets, her small frame barely moving. My dog, ever vigilant, lay at her feet, ears twitching at every faint sound.

The beasts were out there. Waiting.

System Notification:

Threat Level: Reduced. Hostiles have temporarily withdrawn.

Temporarily.

I couldn't shake the feeling that this was a test. They were studying us just as I was studying them.

That's when I had the idea.

If they were adapting, why couldn't I force them to change in a way that worked for us?

I thought back to our encounters. They never relied on sight alone. Their movements were too synchronized, their attacks too well-timed. They were using something else to communicate.

Sound.

Maybe it wasn't speech like humans, but some kind of frequency—ultrasonic signals, vibrations in the air. If I could disrupt it, I could confuse them. Break their coordination.

System Analysis:

New Strategy Identified – Disruptive Frequency Device

Estimated Effectiveness: 72%

It wasn't perfect, but it was the best shot we had.

I got to work. My hands moved on instinct, assembling a crude but functional frequency disruptor from salvaged parts. The power source was tricky, but I found an old emergency battery in our supplies—just enough juice to broadcast over a decent range.

A quiet voice broke my focus.

"Dad…?"

I turned. Lily was sitting up, rubbing her eyes.

I softened my expression. "Hey, sweetheart. Couldn't sleep?"

She hesitated, then shook her head. "They're still out there."

I paused. "Did you hear something?"

She frowned, looking down at her hands. "Not exactly. It's more like… I can feel them."

A cold shiver ran down my spine.

She wasn't wrong. Even though my system had confirmed their retreat, I knew this wasn't over.

I forced a small smile. "That's why I'm working on this."

She looked at the mess of wires and circuits. "What is it?"

"Something that will make them go away," I said simply.

She nodded slowly, then reached out and squeezed my sleeve. "Be careful."

I ruffled her hair. "Always."

With that, she curled back up, my dog shifting closer to her protectively.

I turned back to the device.

System Notification:

Prototype Ready – Activate?

I flipped the switch.

A barely audible hum filled the room, sending a subtle vibration through the air. My system adjusted the frequency, fine-tuning it in real time.

Then, outside—chaos.

Screeches erupted from the darkness. High-pitched wails, guttural roars—panic. My device was working. They weren't just retreating. They were breaking apart.

I checked my system.

System Notification:

Hostile Response: Disoriented and Uncoordinated Retreat Detected.

Success Rate: 76%

I exhaled, tension slowly easing from my shoulders. It worked.

Lily peeked up from her blankets. "Are they gone?"

"For now," I said, watching the signal readings. "But they'll be back."

She nodded sleepily. "You'll stop them again."

I smiled faintly. "Yeah. I will."

As she drifted off, I leaned back in my chair, staring at the flickering lights of the disruptor.

The creatures would adapt. They always did.

But now, I had proof that they weren't invincible.

Next time, I wouldn't just make them retreat.

Next time, I'd make them fear us.