The creature withdrew.

  It pulled itself backward with its one semi-functional limb, dragging its frozen and damaged body toward a passage Arthur hadn't noticed—a smaller tunnel hidden behind a formation of spires. An escape route. A way back to the deeper darkness it had come from.

  Arthur moved to follow. To finish it.

  the resonance pulsed. Not pleading—calculating.

  The creature's eyes moved past Arthur. Toward where Stella lay motionless. Toward where Dren slumped.

  Arthur paused. The creature was right—he could feel his reserves draining. The regeneration, the crystalline adaptations, the combat itself—all of it had burned through energy he couldn't replace down here. And Dren... Dren had taken the sonic assault without any protection. His brain might already be damaged beyond recovery.

  The hunter's math. Cost and benefit.

  Pursuing the creature meant leaving Stella and Dren alone. Meant risking that they'd die while he chased vengeance into the dark.

  He couldn't afford that. Not after everything.

  the resonance observed. Something like approval colored the impression.

  "This isn't over."

  The creature continued its retreat, pulling itself toward the hidden passage. Its bioluminescence was fading—energy reserves depleting from the wounds.

  It paused at the passage entrance. Those six pale eyes studied him one final time.

  The resonance pulsed with something that might have been curiosity.

  Arthur didn't respond.

  The creature vanished into the passage. The blue light of its bioluminescence faded into darkness, gone but not destroyed.

  The main exit—the route back to the surface—stood clear. The creature had retreated into a different passage entirely. Their way home was open.

  But Arthur could still feel it through the resonance. Distant now, but present. The connection between them didn't break with distance.

  Arthur let the Cryo-blade deactivate. The frost faded. The weapon returned to dormant state.

  He stood in the dim light. Breathing hard. Body a ruin of wounds that had already healed. Crystalline growths covered his arms, his chest, his face—armor that had emerged without permission.

  The hunger was screaming in his chest now. Louder than it had ever been. He'd burned through everything and now he was running on fumes. On willpower.

  He had to get them out. Before he collapsed.

  * * *

  Arthur went to Stella first. She was closer—fifteen meters from where the fight had ended, near the wall where the Hand Cannon had fallen for the second time.

  She was still functional. Barely. Her torso was a ruin of torn synthetic skin and exposed components, but her eyes were open and tracking. The Hand Cannon lay beside her, clutched in a grip that had locked and wouldn't release.

  "Can you move?"

  Her voice came out crackling with interference. "Initiating... Asura Protocol. Emergency... repair functions."

  "The safe house," Arthur said. "Can you make it that far?"

  "If you... help me stand." Her eyes found his. "My legs... mostly functional. Just need... support."

  Arthur hauled her up. She swayed, synthetic fluid leaking from a dozen tears in her chassis, but she stayed upright.

  "The safe house," she repeated. "Get me there. I'll initiate... full Protocol. Rebuild what I can."

  Arthur nodded. But they had one more stop first.

  Stella grabbed his arm before he could move toward Dren. "Wait."

  "What?"

  "You're depleted. I can see it—the way you're moving, the way your crystals have gone dormant." She leaned against a spire for support, her damaged systems sparking. "You won't make it back. Not carrying him. Not in your condition."

  "I don't have a choice."

  "No. But I can help." The synthetic skin at the small of her back parted. A thin cable extended—black, flexible, barely thicker than a data line. Her charging cable. "I can give enough to keep you moving."

  A case of content theft: this narrative is not rightfully on Amazon; if you spot it, report the violation.

  Arthur stared at the cable. "That's your power. You need it for the Protocol."

  "I have enough. But you have nothing." She pressed the cable into his hand. "Take it. Don't argue."

  He hesitated. Then connected.

  The energy that flowed through wasn't much—a trickle compared to what he'd burned through in the fight. But it was enough to push back the gray at the edges of his vision. Enough to make his limbs respond without shaking.

  "Thank you," he said.

  Stella's eyes flickered. "Get us home, Arthur."

  The cable retracted. The connection severed.

  Before he could move, Stella dragged herself toward the shadows near the chamber wall. Arthur watched her crawl—broken, leaking fluid, but determined. She returned with the Hand Cannon. The barrel was bent at an angle, warped where the creature's claws had struck with surgical precision. "Damaged," she reported, turning it over in her hands. "Barrel integrity compromised.”

  Her silver eyes met his.

  Arthur went to get Dren.

  * * *

  Dren was alive. Barely.

  His eyes were open but unfocused—staring at nothing, seeing nothing. Blood had dried in streaks from his ears and nose, crusted brown against his gray skin. His breathing was shallow, irregular. The seizing had stopped, but that might have been because his nervous system had given up trying.

  "Dren." Arthur knelt beside him. "Can you hear me?"

  A long moment. Then—

  "...felt... everything..."

  The same words he'd said before. Maybe the only words he could still form.

  Arthur picked him up. His head lolled against Arthur's shoulder. His limbs hung limp.

  The compass was still clutched in his hand. Fingers locked around it in a grip that even unconsciousness couldn't break.

  "You're going home," Arthur told him. "I promise."

  He started walking.

  * * *

  The journey out was agony.

  Arthur's body was failing. Not dramatically—no collapse, no sudden shutdown—but steadily, inexorably, the energy draining out of him with every step. Stella's gift had bought him time, but not enough. The hunger clawed at his insides, demanding fuel he didn't have. His crystals were quiet now, dormant, conserving whatever scraps of power remained.

  Dren was dead weight in his arms. The man hadn't spoken since the nest. His breathing continued—shallow, uneven—but his eyes stayed closed. Whatever the sonic assault had done to his brain, Arthur couldn't fix it here.

  Stella moved beside him, one arm draped over his shoulder for support. She was quiet but she stayed close. Stayed present.

  The return journey felt longer than the descent. Every tunnel looked the same in the darkness. As they moved toward the surface, by the subtle changes in air quality that told him they were leaving the mutated underground ecosystem behind.

  The alien elements faded as they ascended. The spires became sparse, then disappeared. The bioluminescent moss gave way to bare stone. The organic architecture surrendered to human-made tunnels—concrete and metal and rust.

  Arthur's legs began to shake.

  He stopped. Leaned against the tunnel wall. Breathing hard now, even though his enhanced physiology shouldn't need to breathe hard. The shaking spread—up his legs, into his arms, through his whole body.

  "Arthur." Stella's voice was weak, but concerned. "You need to rest."

  "Can't." He forced the word out between gasps. "Stop... and I won't... start again."

  he told himself.

  His body didn't respond.

  The hunger was a physical presence now. A weight in his chest. A hole that was consuming him from the inside. He'd burned through everything fighting the creature, and now there was nothing left.

  Stella fed him again but it was not enough. He needed more energy…more time to focus and consume. Time that Dren didn’t have.

  He thought about the fight. About the beast he'd become. About the way his body had kept healing, kept growing armor, kept pushing forward even when it should have collapsed. That version of him hadn't felt the hunger—or rather, the hunger had been channeled into violence, converted to fuel for the rampage.

  Maybe if he let go again. Let the beast take over. It might have the strength to finish the journey.

  But what would happen when they reached the Warren? What would the beast do when it encountered the dwellers—scared, vulnerable, defenseless people who smelled like prey?

  No. He couldn't risk it. Had to stay himself.

  He couldn't carry Dren much further. Couldn't even carry himself.

  The safe house had power. The power tap. Waiting. If he could just—

  His legs gave out.

  Arthur slid down the wall. The cold stone pressed against his back. The darkness pressed against his eyes.

  he thought.

  His eyes closed.

  * * *

  He woke to Dren's voice.

  "...can... move..."

  Arthur's eyes snapped open. He didn't know how much time had passed—minutes? Hours? The tunnel was the same. The darkness was the same. But something had changed.

  Dren was moving.

  Not much. His fingers flexed. His head turned. His eyes—still unfocused, still damaged—were open and aware.

  The paralytic was wearing off. Finally.

  "...legs... tingling..."

  "Can you walk?" Arthur's voice came out rough. Exhausted.

  "...don't... know..."

  Arthur pushed himself up. Every muscle screamed. Every cell demanded fuel he didn't have. But Dren was conscious. Dren could maybe move. That changed things.

  He helped the man stand. Dren swayed, legs shaking, but he stayed upright. The blood on his face had dried completely now—rust-brown streaks that made him look dead even though he wasn't.

  "Lean on me," Arthur said. "We walk together."

  "...where..."

  "Home. We're going home."

  They moved. Slowly. Agonizingly. Arthur half-carried Dren while Dren half-walked on legs that were only beginning to remember how to function. Every hundred meters they stopped. Rested. Gathered whatever scraps of strength remained.

  Stella had gone ahead. She'd insisted—said she could make it to the safe house on her own, said she needed to start the Protocol as soon as possible. Arthur hadn't argued. She was right. And he couldn't help her anyway.

  Arthur's vision was graying at the edges. The hunger was consuming him. But he kept moving.

  The third junction appeared eventually. Human construction fully reasserted—concrete walls, maintenance markings, the familiar bones of infrastructure. They'd passed the boundary. Left the creature's territory behind.

  The seal was ahead. Home was close.

  They stopped again. Dren was shaking—not from the paralytic now, but from exhaustion and trauma and the long nightmare finally ending.

  "...what... was that thing..."

  "A monster." Arthur's voice was barely a whisper. "That's all I know."

  "...it called you... something... through the... pressure... I felt it..."

  "I don't know what it meant."

  It wasn't entirely a lie. He knew the word—Mimir-born—but not what it signified. Not why the creature thought they were connected. Not what he was becoming.

  Questions for later. When he wasn't dying of hunger.

  "...you... saved me..."

  "Not yet. We're not out yet."

  They kept moving. Step by step. The seal growing closer.

  * * *

  Arthur's legs gave out twice more. Each time, he forced himself back up. Each time, the hunger screamed louder. Each time, the gray at the edges of his vision spread further.

  But he kept moving.

  Because Stella was waiting at the safe house, broken and regenerating. Because Dren was depending on him to finish what they'd started.

  The seal was ten meters ahead when Arthur's vision went completely gray.

  He fell.

  Voices. Distant.

  "—over here! I see someone—"

  "—is that—oh god, is that Dren?—"

  "—his eyes, look at his body, what the hell is—"

  "—get Sela! Get her NOW—"

  Hands. Lifting him. Lifting Dren.

  Light. Too bright.

  Arthur tried to speak. Tried to say they were alive, they'd made it, the creature was wounded but not dead.

  Nothing came out.

  The gray consumed everything.