SNAP.
The thread dropped from the ceiling seam and cut through the escort light like a needle through skin.
The light flickered again.
Flick.
Mina jerked back but the rule yanked her toward me. Two steps. Her shoulder brushed my arm. I felt her shake travel through the merge like a pulse.
"It's touching the patch," she said. Her voice was thin, the words scraping out of her.
The Anchor Seal Patch on her forehead shimmered, then dimmed. It was holding, but it was holding with both hands.
The medical unit lifted the resonance box higher, aiming it up. The box hummed like a trapped hornet.
BZZZZT.
The thread did not retreat. It learned. It hovered above Mina, then dipped again, slow this time, as if it enjoyed the fear.
Tap.
It tapped the patch.
Mina hissed through her teeth. "Stop."
The system prompt burned in my view, bright enough to wash the corridor into a tunnel.
QUARANTINE UMBRELLA STRAIN
Status: Critical
Immediate action: Seal escort light boundary or sacrifice contact point
Proceed? Y/N
Cass stared at my face, reading what she could. "It's asking for blood," she said.
Darren's breath came out hard. "Do something."
Eli's eyes were half-lidded. Sweat ran down his temple. He still stayed close, because the tie and merge made distance feel like ripping.
The panel ahead was open. The interface frame waited. The door was a mouth and the thread wanted to feed before we crossed.
I tried to think like the building.
Seal boundary meant strengthening the escort light. That would push the thread out, at least for a moment. But strength was never free. Strength was debt or memory.
Sacrifice contact point meant letting the thread latch to something it could own, so it would stop chasing Mina and stop testing the umbrella. That was a leash too, just on a different neck.
My authority was still zero. I could not buy tools with authority. I could only pay with debt, or with pieces of myself tied up in escrow.
The thread dipped again.
Tap.
Mina's knees flexed like she might fall.
"I can't hear it clearly," she said, and that scared me more than screaming. "It's under the patch but it's still talking."
"What is it saying," Cass asked, voice tight.
Mina swallowed. "It's saying I can take the pain away if I just let it in."
The words turned my stomach.
The medical unit shifted its weight forward, blocking the frame slightly. It did not speak, but its posture said this was not its problem. Its job was to move the escort key forward. If the group broke behind it, that would be logged. That was all.
The thread moved again, faster.
SNAP.
It lunged straight at Mina's forehead.
I hit Y.
Click.
A second prompt flashed, quick and cruel.
SELECT ACTION
Seal escort light boundary
Sacrifice contact point
Choose: 1 or 2
I chose 2.
Click.
My throat went dry.
The system did not let me stop there.
SACRIFICE CONTACT POINT
Eligible: Owner, Escort Key, Subject Mina, Group Link
Warning: wrong selection may fracture umbrella
Select: A) Owner B) Escort Key C) Mina D) Group Link
If I picked escort key, we might lose the box. If we lost the box, we lost passage. If we picked Mina, we gave the thread what it wanted. If we picked group link, it might bite all of us.
There was only one choice that kept Mina from becoming a door.
I picked A.
Click.
A sting ran across my wrist marks, hot and sharp, as if my skin had become a wire and someone dragged it across a nail.
Tchk.
The thread snapped sideways in midair. It did not hit Mina. It curved toward me like a hungry dog smelling meat.
It struck my wrist.
TAP.
The contact was not physical in a normal way, but my bones felt it.
Cold slid up my arm. Not the frost from the roof, not that clean cold. This cold was a thought with teeth.
The escort light flared.
Fwoom.
The light steadied for half a second as if it sighed in relief, then it dimmed to normal. The thread stayed on my wrist, a thin black line that pulsed with each beat of my heart.
Thump. Thump.
New text appeared in my view.
THREAD GROUND ESTABLISHED
Contact point: Owner
Condition: Maintain escort light, maintain quarantine umbrella
Penalty on removal: Containment escalation
Cost: Debt +2
Proceed through interface: Y/N
Debt ticked up in the corner of my sight.
24 became 26.
I did not have time to hate the number.
The thread tightened around my wrist.
Tight.
Pain spiked, then settled into a constant burn. It did not feel like injury. It felt like ownership trying to be born.
Mina gasped as if she felt it too. "It moved."
"It's on me," I said.
Darren stepped closer, then stopped because the rules were still a cage. "Can I pull it off."
"No," Cass said. "Don't touch him."
The umbrella rule, the quarantine rule, the no contact with non-quarantined entities. Touch was never just touch here.
The medical unit angled the resonance box toward my wrist. The hum deepened.
BZZZZT.
The thread shivered but did not break. It held on. It was proud.
Eli's voice was hoarse. "We have to go. That door is still open."
The panel ahead made a soft alert sound, impatient.
Beeep.
I hit Y.
Click.
"Move," I told them.
We stepped through the interface frame together. The escort light flowed with the medical unit and the box. I stayed within it. Mina stayed within two steps of me, so close her breath warmed my sleeve.
The frame made a sound like a camera shutter.
Clack.
A thin line of light scanned us as we passed. It lingered on my wrist.
Beeep.
The panel spoke in a flat voice.
"Foreign contact detected. Owner liability increased."
No surprise. No mercy. Just a note in a ledger.
We entered a wider corridor. The ceiling was lower. Pipes ran along one side behind a metal mesh. A sign was bolted to the wall, stamped letters filled with old paint.
MAINTENANCE ACCESS
NO CONDUIT TOUCH
ESCORT LIGHT REQUIRED
The rules were always written twice, once in code and once in metal.
Behind us, from far down the corridor, the breached area boomed again.
BANG.
Then another sound followed, softer but worse.
Riiiip.
Like fabric tearing.
The foreign thread had not stopped at me. It had only changed tactics. It had a line now. A leash. It could follow the leash.
The black line on my wrist pulsed again. I felt a tug, not strong, just a test.
Tug.
Mina made a small noise. "It's pulling you."
"It's pulling the way back," Cass said.
Darren's eyes were hard. "It wants us to turn around."
I kept walking. Each step felt like moving through mud, not because of weight, but because the building made every move into a decision, and decisions were heavy.
We followed the escort light. The medical unit led without looking back. The resonance box stayed in its hands, the key to our forward motion.
The leash on my wrist tugged again, stronger.
Tug.
I stumbled. Mina grabbed my arm without thinking. Her fingers touched my sleeve, then froze as if she expected a punishment to strike her.
Nothing happened. No immediate alarm. Maybe because we were both inside quarantine. Maybe because we were merged. Maybe because the system was busy with bigger threats.
I steadied. "Don't let go," I told her.
Her eyes widened. "But the rules."
"The rule is two steps," I said. "And staying alive."
The voice in the back of Mina's mind whispered again, and this time I heard an echo of it through the thread on my wrist, like a radio catching the same station.
Nate.
It said my name without sound.
It was inside my skin now.
Cass's gaze snapped to my wrist. "You're hearing it."
"Yes," I said, and I hated how calm my voice sounded. Calm was a mask. The mask was cracking.
The corridor turned left. Another interface waited ahead. This one was a hatch-like door with a narrow window and a small keypad set into the wall. Above it, a single lens watched.
Whirr.
The door was labeled in the same stamped style.
JUNCTION GATE
A second sign hung beside it.
INSPECTION REQUIRED
QUARANTINE GROUPS REPORT STATUS
FAILURE RESULTS IN SORTING
Sorting. The word felt like a blade cleaning itself.
The medical unit stopped at the gate. The escort light pooled around us, steady for now. The leash on my wrist tugged again and I clenched my hand into a fist to keep from reaching back.
The lens on the door spoke, not with a human voice, but with the same routine tone that always carried the Supervisor behind it.
"Quarantine group. Report."
A prompt appeared.
JUNCTION GATE COMPLIANCE
Confirm quarantine integrity: Y/N
Confirm owner accepts liability for foreign contact: Y/N
Confirm group will not attempt contact with debtor hazard area: Y/N
Proceed? Y/N
Four yes or no questions. Four traps, each one with a hidden hook.
If I said no to integrity, it would sort us. If I said no to liability, it would contain me. If I said no to the hazard area contact, it would flag us as threats. If I said no to proceed, it would still act, because refusal was also an answer.
Darren leaned close, voice low. "What does it want."
"It wants me to agree to everything," I said. "So it can punish me later."
Cass's jaw tightened. "Pick the least deadly lie."
Eli's head dipped. He looked like he might fall asleep standing. "Just get us through."
Mina's breath hitched. "It's pulling again."
The leash tugged hard.
TUG.
Pain flared up my arm. The thread wanted the door moment. It wanted me distracted. It wanted to turn a yes into a crack.
I forced my focus back to the prompts.
Confirm integrity.
We were not intact. We were held together by tape and fear. But if I said no, it would sort us now.
I pressed Y.
Click.
Confirm owner accepts liability for foreign contact.
If I said no, it would treat the foreign contact as hostile and remove it by force, which meant remove me, or cut the group link, or seize the escrow. It would do it cleanly, with signatures.
I pressed Y.
Click.
Confirm group will not attempt contact with debtor hazard area.
We were already running away from it. I could say yes and mean it, even if the thread on my wrist did not agree.
I pressed Y.
Click.
Proceed.
My finger hovered.
The leash tugged again, steady now, like someone drawing me backward inch by inch.
Tug. Tug.
Mina clutched my sleeve harder. "Nate, please."
The voice in my head, through the thread, changed tone. It sounded like Roy now, a perfect copy, with panic poured into it.
"Don't leave me," it said.
My stomach dropped.
Roy had been behind a wall. Roy had been a debtor. Roy had been sealed.
This voice was a mask. It was a hook.
Cass saw my face change. "What."
"It's using Roy's voice," I said.
Darren swore under his breath. "It's in his cell."
The medical unit's head turned slightly toward me, the first sign it cared.
Whirr.
The resonance box hummed louder, a warning drum.
BZZZZT.
The lens over the junction gate made a soft chime, impatient again.
Beeep.
Proceed Y/N.
If I did not press something, the system would press for me.
I pressed Y.
Click.
The junction gate unlocked with a deep clunk.
CLUNK.
The door began to open.
As it opened, the leash on my wrist yanked so hard my shoulder jerked back.
YANK.
The black thread dug into my skin. The escort light flickered, once, twice.
Flick. Flick.
Mina cried out. Darren grabbed Mina's other arm, steadying her without touching bare skin, just cloth. Cass moved in front of Eli so he would not drift out of the light.
The door opened wide enough to show the next space.
A junction chamber.
Metal floor panels. A central frame like a square altar. Pipes feeding into it from all sides. A low hum in the air, alive.
And inside that frame, hanging like a curtain, was a cluster of thin dark strands.
Not one thread.
Many.
They swayed as if they waited for us.
The voice in my head stopped pretending to be Roy.
It spoke as itself, warm and hungry.
"Owner," it said, "welcome."
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