The fail-safe chamber door closes behind me. The lock engages with a heavy thud that echoes in the small space.
I'm alone in the circular room. The hologram projector hums on its pedestal. My father's face hangs in the air, frozen in blue light. His words replay in my mind.
"You have a choice."
I reach for the green button.
The door explodes inward.
I dive sideways. Metal shards fly past me. One grazes my arm. Blood wells up, warm against my skin. I hit the floor hard, roll, come up behind the pedestal.
Vance steps through the smoke. Her rifle is raised. Her eyes are wild, furious. Behind her, enforcers pour into the small room. At least six of them. Rifles trained on me.
"Step away from the console, Nova."
My hand is inches from the green button. I can see it. Green. Waiting. My fingers twitch.
"If I die, you die," I say. "The core is already heating. Without the activation sequence, it will destabilize and take out everything in a mile radius. Sanctuary. The surface. Everyone."
"Liar."
"Test me."
She hesitates. Just for a second. Her eyes flick to the console. To the pulsing green light.
It's enough.
Kael comes through the broken door like a missile. He hits the first enforcer from the side. The impact carries them both into the wall. The enforcer's head cracks against the concrete with a wet sound. He goes limp.
The second enforcer spins. Raises his rifle. Kael is already moving. He grabs the barrel, pushes it aside. The shot goes wild. His fist connects with the enforcer's jaw. Bone cracks.
Gunfire. I drop flat behind the pedestal. Bullets ping off the metal above me. Sparks rain down on my head. I cover my face.
"Activate it!" Kael shouts. "Do it now!"
I reach up. My fingers find the green button. My thumb presses down.
An enforcer grabs my ankle. He yanks hard. I hit the floor. My head snaps back against the concrete. Stars explode in my vision. The room spins.
"Get off her!" Chen's voice. He's there, standing in the doorway. His arm is still bleeding, dripping blood on the floor. He throws himself at the enforcer.
They struggle. The enforcer is bigger. Stronger. He punches Chen in the face. Once. Twice. Chen's head rocks back. The enforcer throws him aside like a rag doll. Chen hits the wall and slides down.
I crawl toward the console. My fingers scrape across the metal floor, nails breaking. Blood smears on the ground.
Vance appears above me. Her boot presses down on my hand. I feel the bones grind together. Pain shoots up my arm.
"Your father was a fool," she says. "He thought he could save everyone. He thought he could control the Shell. And so are you."
I look up at her. At the rifle pointed at my face. At the cold hatred in her eyes.
"The key," she says. "Give me the key."
I look at the console. The green button. So close. So far.
"Never."
I bite her ankle.
She screams. Her grip loosens. I pull my hand free and lunge for the button.
My palm slams down on the green light.
The console lights up. A low hum starts, deep and resonant, vibrating through the floor. Through my bones. Through my teeth. A siren blares — high-pitched, urgent. The walls shake. Dust rains from the ceiling in sheets.
"Terraforming sequence initiated," a synthetic voice announces. "Shell core temperature rising. Structural integrity of Sanctuary compromised in T-minus ten minutes."
Vance's face goes white. "You insane girl."
"You have no idea."
She raises her rifle. I don't flinch. I stare down the barrel.
Kael tackles her from the side. The shot goes wide. The bullet ricochets off the ceiling. They crash into the wall. Her head hits the concrete with a c***k. She goes still.
"Come on," he says. He grabs my arm and pulls me up.
I look at Vance's unconscious body. At the enforcers sprawled on the floor. At the smoke-filled room.
"The core is going to blow," I say. "Ten minutes. Everyone out. Now."
We burst from the fail-safe chamber. The main room is chaos.
Enforcers are shouting, running in every direction like ants from a flooded nest. Emergency lights flash red and white, painting everything in strobing horror. Alarms blare from every speaker in the complex.
The Shell is glowing brighter than I've ever seen it. Light surges through its veins like blood. Blue-white, pulsing, growing. The temperature in the room rises rapidly. Sweat beads on my skin. The air is thick and hot.
Men and women run past us. Civilians. Sanctuary residents. They're screaming. Crying. Carrying children. Grabbing whatever they can carry.
"The emergency tunnel," I shout to them. "This way!"
Some follow. Most don't. They run in every direction, panicked, lost.
Kael grabs my arm. "We need to go. Now."
We run.
The corridor shakes. Cracks spiderweb across the ceiling. Dust and debris rain down on us. The lights flicker and die, replaced by emergency reds that cast long, dancing shadows.
"How far?" Kael shouts over the noise.
"Four hundred meters. Through maintenance. Then up."
"Too far."
"We don't have a choice."
Three hundred meters. The floor buckles. A c***k splits the concrete ahead of us, deep and wide. I leap over it. Kael follows. Chen stumbles at the edge.
I catch his arm. I pull him across. He lands hard on the other side.
"Thanks," he gasps. His face is gray. His arm is soaked in blood.
"Don't thank me yet."
Two hundred meters. Enforcers ahead. Three of them. They see us. They raise their guns.
"Surrender!" one shouts. "The Council orders you to stand down!"
Kael doesn't slow down. He fires as he runs. Three shots. Two hit. The enforcers fall. The third one ducks behind a corner, firing blindly. Bullets chip the wall beside my head.
One hundred meters. The emergency tunnel entrance. A reinforced door with a red handle. Warning signs plastered across it. EMERGENCY EXIT ONLY. USE ONLY IN CASE OF CATASTROPHIC FAILURE.
I pull the handle. Nothing. It's locked tight.
"Locked!"
Kael pushes me aside. He raises his pistol and fires at the locking mechanism. Sparks fly. The metal groans. He fires again. Again. His slide locks back. Empty.
"Move!"
Chen rams his shoulder into the door. Once. Twice. On the third hit, it bursts open with a screech of tortured metal.
Darkness. Cold air rushes out. The smell of earth and rust and something else.
The tunnel is narrow. Just wide enough for one person. The walls are rough rock, uneven, unfinished. No lights. No markings. Just darkness stretching upward into nothing.
I pull out my flashlight. The beam cuts a shaky path ahead.
"Go," Kael says. "I'll hold them."
"No."
"It's not a debate, Nova. Go."
"Kael—"
"Go!"
His eyes meet mine. There's no fear in them. Just certainty. Just resolve.
"If you die," I say, "I'll kill you."
"I know."
He pushes me toward the tunnel.
I go.
Chen follows. The tunnel twists and turns. Upward. Always upward. My legs burn. My lungs burn. I can't breathe. The air is thin and cold.
Behind us, I hear gunfire. Kael's g*n. Three shots. Four. Five.
Then silence.
My heart stops. My feet keep moving. Keep moving. Keep moving.
The tunnel opens into a small chamber. An old cargo lift stands against the far wall. Rusted. Worn. Ancient. The cables are frayed. The doors are dented.
I slam the call button. Nothing.
"It doesn't work," Chen says.
"Fix it."
He looks at the control panel. He's trembling, swaying on his feet. His fingers move across the exposed wires. Sparks fly. A hum builds.
The lift shudders to life.
Footsteps in the tunnel. Heavy. Rhythmic.
I raise my rifle. My hands are shaking.
Kael emerges from the darkness. His arm is bleeding badly. His face is pale. But he's alive.
"Miss me?"
I want to hit him. I want to hug him. I do neither.
"Get in the lift."
He steps inside. Chen hits the button. The doors close with a screech.
The lift groans as it rises. Slow. Painfully slow. The cables creak and strain.
"Sanctuary will be gone in four minutes," I say.
"Then we better be far away."
The lift creaks. The cables strain. I hold my breath.
Two minutes.
The lift stops.
The doors open.
Cold air hits my face. Real air. Surface air. I smell something I've never smelled before in my entire life.
Clean air. Fresh air. Sweet air.
Outside, the wasteland spreads before us. But it's different. The sky is lighter. Softer. Blue instead of gray. The ground is green. Patches of moss and grass cover everything. Small plants push through the cracked soil.
"I don't understand," Chen says. "This shouldn't be possible."
I point.
On the horizon, a wall of green light rises into the sky. It pulses. It breathes. It spreads. Wave after wave of energy washing across the landscape.
"The Shell," I breathe. "It's already working."
The ground shakes. A deep rumble from below. A c***k splits the earth.
We run.
The ground splits behind us. Fire and smoke billow from the cracks. The earth swallows my home. The sound is deafening — a roar that shakes my bones, that vibrates in my chest.
I fall to my knees at the edge of a ridge. I watch Sanctuary die.
Kael kneels beside me. He puts his arm around my shoulders. His hand is warm. Steady.
"It's gone," I whisper.
"We're alive," he says. "That's what matters."
I look at the horizon. At the green light spreading across the sky. At the world that's changing.
My father's voice echoes in my head.
"You have a choice."
I made my choice.
Now I have to live with it.