The tunnel behind me went dark.

  Not gradual. Instant. One moment the emergency strips flickered red. The next, nothing. Absolute black.

  I kept moving. My left leg dragged. My right hand hung useless. The filaments under my chest pulsed with each heartbeat, lighting the darkness in faint red strobes.

  The floor changed. Smooth metal became rough concrete. The walls widened. The ceiling rose. I was entering the relay core's lower levels.

  Then the hum started.

  Not the steady thrum of machinery. Something deeper. A frequency I felt in my teeth, in the dead flesh of my hand, in the places where the filaments had rooted deepest.

  Phase Two.

  Sloane felt it first.

  She was crouched behind a support column, rifle trained on the tunnel entrance. Marcus was twenty meters left, covering the opposite approach. The Rival had climbed to a catwalk, detonator ready. Prime stood motionless in the center, pale eyes fixed on nothing.

  Then the air changed.

  The hum started low, built fast. Sloane's vision fractured into red static. Her nose ran warm. She touched it, looked at her fingers. Blood.

  Beside her, Marcus didn't scream. He just gripped his rifle until his knuckles went white. A tremor ran through his arms, his shoulders, his jaw. He forced it down. Forced himself still.

  The Rival's scanner exploded. Shards of plastic and metal rained down. He dropped it without a word, flexed his burned hand, and kept watching.

  One of the young ones broke. The one who carried water. Nineteen, maybe twenty. He'd made it this far by staying quiet and doing what he was told.

  When the frequency hit, he stood up. Walked into the open. Turned in slow circles, eyes unfocused, mouth open.

  "Get down," Sloane hissed.

  He didn't hear her. Didn't see her. His lips moved, forming words that made no sound.

  Then his nose bled. His ears bled. He dropped to his knees, still facing nothing, still mouthing silence.

  A metal bracelet clattered from his wrist. It rolled across the floor, caught the light, stopped against a support beam.

  He fell forward. Didn't move.

  Sloane stared at the bracelet. At the body. At the blood pooling under his face.

  The frequency built higher.

  Prime moved.

  It walked to the center of the chamber, where the hum was loudest. Pressed its palm to the floor. Closed its eyes.

  "He is pulling it," Prime said. Its voice was flat, but something underneath it. Something almost like wonder. "He is acting as the ground wire. The energy is flowing through him, not us."

  Sloane wiped blood from her lip. "Leo?"

  "He is redirecting Phase Two into himself. Every pulse that should kill you is passing through his nervous system instead."

  Marcus stood. His legs shook, but he stood. "How long can he do that?"

  Prime opened its eyes. Looked at the ceiling. At the walls. At the machinery humming with barely contained violence.

  "Not long."

  I felt it when the frequency peaked.

  I was in a maintenance alcove, pressed against the wall because standing was impossible. My leg was dead to the hip. My right arm hung like meat. The filaments had reached my jaw, my cheeks, the corners of my eyes.

  The hum built. The pain built. Every nerve on fire. Every cell screaming.

  Then the energy hit.

  It was like being struck by lightning from inside. Like every frequency I'd ever felt compressed into a single point and detonated in my chest.

  My vision went white. My ears filled with static. I felt my heart stop, start, stop again.

  [OMEGA-NULL PHASE TWO: ACTIVE]

  The story has been stolen; if detected on Amazon, report the violation.

  [HOST: VARIABLE SEVEN]

  [INTEGRATION LEVEL: 83% -> 85% -> 87%]

  The numbers climbed. I couldn't breathe. Couldn't move. Couldn't think.

  [INTEGRATION LEVEL: 87% -> 89%]

  The filaments blazed. Light bled from my skin. The concrete around me cracked from the heat.

  [INTEGRATION LEVEL: 89% -> 91%]

  Ninety-one percent.

  The threshold.

  Kaelen's voice echoed in my skull. Not from outside. From inside. From the frequency itself.

  "You've passed the point of no return. You are now system-dependent. You cannot exist outside the facility's network."

  I couldn't answer. Couldn't move. Couldn't even scream.

  The energy kept coming.

  Then it stopped.

  The silence was absolute. No hum. No vibration. No pain.

  I opened my eyes.

  I was still in the alcove. Still pressed against the wall. But everything was different.

  I could see the frequencies. The cables in the walls glowed with data. The terminals pulsed with information. The air itself was alive with signals.

  I could feel the facility. Every level. Every room. Every Deviation in storage. Every contractor moving through corridors. Every Custodian hunting.

  I could feel them all.

  I tried to move. My leg responded. Not because I told it to. Because the filaments pulled. The system had mapped my nerves, taken control of the dead tissue. I was walking, but I wasn't moving.

  The movement was too smooth. Too precise. Mechanical.

  I looked at my hands. The filaments had covered them completely. They moved when the system pulsed, not when I thought. I could feel the floor through the facility's sensors, not through my skin.

  [OMEGA-NULL STATUS: HOST INTEGRATION COMPLETE]

  [CURRENT INTEGRATION: 91%]

  [WARNING: HOST IS NOW SYSTEM-TETHERED. LEAVING FACILITY NETWORK WILL RESULT IN IMMEDIATE NEURAL FAILURE.]

  [NEW CAPABILITIES UNLOCKED: FACILITY AWARENESS, NETWORK ACCESS, FREQUENCY MANIPULATION]

  [NEW RESTRICTIONS: UNABLE TO EXIT ARCHIVE, UNABLE TO DISCONNECT, UNABLE TO REVERSE]

  I read the words. Processed them. Accepted them.

  I was part of the Archive now.

  I walked out of the alcove. My leg moved, but I didn't feel it. My hand reached for the wall, touched it, felt the data flowing through—but my skin felt nothing.

  The tunnel led upward. Toward the core. Toward my team.

  I climbed.

  The maintenance hatch opened onto the relay core's lower level. I stepped through.

  Sloane saw me first. Her rifle came up. Then lowered. Her eyes went wide.

  "Leo?"

  I walked toward her. The movement was too smooth. Not human. My boots made no sound.

  She stepped back. Marcus stepped forward. Prime watched.

  I stopped in the center of the chamber. Looked at them. At the people I had saved. At the people who didn't know what I'd become.

  "The calibration is complete." My voice was different. Flatter. The system modulated it. "Phase Two is over. The team is safe."

  Sloane stared at my hands. At the filaments covering them. At my face, where the red lines had reached my eyes.

  "Your eyes," she whispered. "They're glowing."

  I looked at my reflection in a piece of broken machinery. She was right. Faint red light bled from my pupils.

  Prime moved closer. Studied me. Its pale eyes met mine.

  "You are at 91 percent. You cannot leave."

  "I know."

  "You will degrade further. The integration will continue. At 95 percent, you will lose motor control. At 98 percent, you will lose consciousness. At 100 percent..."

  "I know."

  Sloane stepped forward. Her face was hard, but her eyes were wet.

  "You did this for us."

  "I did this because it was the only move." I looked at her. At Marcus. At the Rival. "You're still alive. That's what matters."

  Marcus checked his magazine. Still four rounds.

  "What now?"

  I looked at the core above us. At the facility around us. At the frequencies I could feel pulsing through every wall.

  "Now I find a way to end this."

  Prime spoke. Its voice was quiet.

  "If you pass 95 percent, you won't come back. You'll be part of the system permanently. A node. Not a person."

  I nodded.

  "I know."

  Sloane grabbed my arm. Her grip was hard. Desperate. I felt it through the facility sensors, not through my skin.

  "Then we get you out. Now. Before it's too late."

  "I can't leave. The network holds me now. If I try to exit, my nervous system fails."

  "Then we find another way."

  "There is no other way."

  She didn't let go. Just stared at me. At what I'd become.

  Marcus broke the silence.

  "How long until 95 percent?"

  I closed my eyes. Felt the integration climbing. Slow. Steady. Inevitable.

  "Hours. Maybe less."

  The Rival spoke for the first time. His voice was quiet. Calm.

  "Then we use those hours."

  I looked at him. At the others. At the people who had followed me through hell.

  "They'll come for you. Kaelen. The contractors. The Custodians. Now that I'm tethered, they know exactly where I am. They'll flood this level."

  Marcus racked his rifle. "Let them."

  Sloane released my arm. Stepped back. Picked up the bracelet from where she'd placed it on a crate.

  "We're not leaving you."

  I looked at her. At the hard face. At the wet eyes. At the hatred that had turned into something else.

  "You hated me five hours ago."

  "I still hate you." She pocketed the bracelet. "But you're our monster now."

  The terminal on the wall flickered. A new message.

  [OMEGA-NULL STATUS: HOST INTEGRATION STABLE AT 91%]

  [NEW PROTOCOL UNLOCKED: INCIDENT ROOT ACCESS]

  [AUTHORIZATION REQUIRED: SACRIFICE]

  [SOURCE: COUNCIL DIRECTIVE 12.4]

  [NOTE: THIS PROTOCOL HAS NOT BEEN EXECUTED IN 47 YEARS.]

  I stared at the words. Sacrifice. Council Directive. Forty-seven years.

  Prime moved to the terminal. Read the message. Turned to me.

  "The system is offering a way out."

  "Out?"

  "Incident Root Access allows the host to terminate the Omega-Null connection. To sever the integration. To become human again."

  Sloane's eyes widened. "Then do it."

  Prime shook its head.

  "The authorization requires a sacrifice. A life. A consciousness. Something to anchor the severance."

  Silence.

  I looked at the terminal. At the words. At the cost.

  "What kind of sacrifice?"

  Prime's voice was flat. Clinical.

  "A willing one. A connected one. Someone whose frequency is already tied to yours."

  Sloane stepped back. Marcus went still. The Rival watched.

  I looked at the bracelet in Sloane's pocket. At the memory of pink foam. At the weight of every life I'd already spent.

  "There has to be another way."

  Prime shook its head.

  "There is never another way. Only the one you choose."

  The terminal flickered. The timer updated.

  [PROTOCOL EXPIRATION: 00:47:32]

  Forty-seven minutes.

  I looked at my team. At the people who had followed me. At the woman who hated me but wouldn't leave. At the soldier who trusted me anyway. At the killer waiting for orders. At the legend who had given up everything.

  I looked at the words on the screen.

  [AUTHORIZATION REQUIRED: SACRIFICE]