BEYOND THE WALLS

Chapter 5: The Weight of Truth

Commander Jax didn’t smile at my decision. She simply gave a sharp nod, as if I’d stated the obvious. A blue light from a device in her hand dissolved the binders on our wrists.

“Follow me,” she said, turning abruptly. “Don’t fall behind.”

We hurried after her, Roric still stiff with pride, Lyra’s eyes wide as she scanned everything. The sterile hallway opened into a staggering sight: a city carved inside the mountain itself. Tiered metal buildings climbed the cavern walls, connected by delicate walkways. A soft, artificial light glowed from the high ceiling. The air hummed with purpose. People moved with a determined efficiency I’d never seen in Aethel. Their faces were hard, their eyes focused. This wasn’t a refuge. It was a war base.

“The Makers weren’t gods,” Jax stated, not breaking stride. “They were scientists. We were their experiment. They put different groups of humans in isolated environments—your Aethel, the volcanic pits of Kessel, others—to see how we’d evolve under pressure.”

“An experiment?” The word felt foul in my mouth. “All the death… just for an experiment?”

“Yes.” Her answer was a hammer blow. “The Behemoths are not monsters. They are automated guards. Their job is to maintain the Walls, stop you from advancing too far technologically, and cull your numbers if you become a problem.”

My brother’s voice whispered in my memory. They’re looking for something. They were. They were looking for rebellion.

“The Obsidian Behemoths—Key Sentinels—are deployed when a prison shows signs of failure. When people start asking questions. Your brother’s curiosity triggered an alert. You destroying it triggered a major one.”

She stopped at a huge circular door. It slid open with a rumble, revealing an armory that stole my breath. Racks of sleek, humming weapons lined the walls. In the center hung suits of armor, dark grey with glowing blue lines.

“Your grappling gear is clever,” Jax said, a flicker of approval in her tone. “A stone axe in a world of steel.” She gestured to the armor. “This can take a hit from a Class Two Behemoth.” She picked up a rifle. “This is a sonic disruptor. It doesn’t cut. It makes the target’s molecules vibrate apart. It works very well on rock.”

Lyra stared, mesmerized. “You can really kill them?”

“Deactivate them,” Jax corrected. “They’re machines. Break the core, break the machine. The common ones have their cores buried deep. The Key Sentinels wear theirs outside—arrogance. Your method of breaking the housing was clumsy, but it worked.”

She fixed her eyes on me. “Your brother was right about the ‘Heart.’ We call it the Nexus. It’s a central power source that controls every Behemoth and every Wall. Shut it down, and the entire prison system fails. The doors open.”

The scale of it was overwhelming. This wasn’t about one city. It was about freeing the human race.

Roric found his voice. “So we attack this Nexus?”

“It’s the only goal,” Jax said. “We’ve been preparing for decades. The Citadel is the only free human settlement, and we are few. You destroying that Sentinel proved they can be beaten. It proved the prisoners are waking up.”

Her comm unit buzzed. She listened, her face hardening. “A patrol is back. With casualties.” Her gaze swept over us, taking in our primitive clothes and stunned expressions. “Theory is over. Welcome to the war.”

She led us to a balcony overlooking the main hangar. The great door was opening. Three hover vehicles sped in, one trailing smoke. They were scarred and battered. As they landed, medics rushed forward.

The soldiers who climbed out were a stark contrast to the perfect unit that captured us. They limped, leaned on each other. Two were carried out on stretchers, their armor cracked and blackened. I saw blood on the deck.

Then I saw what they had brought back. In one vehicle, chained down, was a chunk of black obsidian. Embedded in it was a fragment of a white core, no bigger than my fist, pulsing with a weak, stubborn light.

“A scout team found a Key Sentinel patrol,” Jax said, her voice flat. “They lured one into a trap. This is all that’s left. We collect the cores. Our engineers study them, looking for a weakness, a way to turn their power against them.”

I couldn’t look away from the wounded. This was the true cost. This was the war Kael had only dreamed of. It was a grinding, b****y fight against a system designed to erase you.

The choice Jax offered felt different now. It wasn’t about learning to fight. It was about accepting this: the pain, the loss, the endless struggle against a cold, mechanical enemy.

I thought of the safe, quiet lies of Aethel. The peaceful cage. Then I looked at the captured core, a piece of the thing that murdered my brother, and I felt a cold, sharp hatred instead of fear.

“When do we start training?” I asked, my voice low and steady.

Jax looked from the wounded to me. For the first time, I saw something in her eyes that wasn’t just calculation. It was recognition.

“It starts now.”