The gas thinned to a gray haze that clung to the stairwell walls and made the emergency strips at floor level blur into orange ghosts. Return fire punched through the door frame in short, controlled bursts—three rounds, pause, two rounds—the rhythm of professionals who knew they were holding a choke point and intended to keep it. Sasuke pressed his shoulder blades against cold concrete and felt the sedative in his bloodstream loosen its grip one strand at a time, the bond-separation ache beneath his chest sharpening from a throb into something with edges.
"Hold him still," Sakura said, her voice steady despite being covered in blood. She knelt beside the wounded operative—a man whose name Sasuke had never learned, one of Konan's team, young enough that his face still carried the last traces of adolescence under the blood loss—and worked with both hands inside the wound. The through-and-through had exited clean, but the entry was a mess of torn muscle and fabric driven into the channel by the bullet's passage. She moved quick, packing gauze, applying pressure, her jaw set against the sharp scent of copper that filled the stairwell landing.
The resistance here was heavier than anything they'd encountered on the upper floors. Sasuke's mind caught on that fact and wouldn't release it. There was only one reason to hold a choke point this hard—Orochimaru was buying time. Moving the prisoners. Every round punching through that door frame was a second Naruto got further away.
The operative made a sound through clenched teeth—not quite a scream, not quite a word—and Sakura pressed her weight down harder. "Breathe," she told him. "Stay still. You can pass out after I'm done."
Across the door, Itachi had not moved since the canister rolled. His weapon held on the door. His eyes moved through the stairwell in slow arcs. The gas had given them minutes. Enough to drag their wounded clear, enough to read the situation. Not enough to change it.
Itachi lowered his weapon fractionally, and the movement drew every eye on the landing.
"We cannot force this door," he said, voice flat and final. "Not without more bodies than we can afford to lose."
Sasuke's grip tightened on his weapon until the textured grip bit into his palm. The door frame took another burst—three rounds, pause, two rounds—and each impact felt like another second gone. His free hand found his chest without his permission. Somewhere on the other side of this door, Naruto was being moved, or hurt, or worse, and Sasuke was standing in a stairwell doing nothing. It ate at him to be so close and so far.
Boots hit the concrete above them—multiple sets, fast and descending. Sasuke aimed his weapon away from the door and towards the stairs. Sakura's hand stayed on the wounded operative's shoulder; her other hand closed around her sidearm.
"Friendly," Itachi said, and Sasuke finally lowered his weapon.
Gaara came through first—pale eyes moving across the landing in one sweep, taking in the smoke, the blood, the wounded operative, registering all of it. Kisame filled the stairwell opening behind him, the grin he usually wore filed down to something harder and more purposeful. Deidara cleared the last step with a grin on his lips. Sasuke let out a breath he didn't know he was holding—and then had to press his back against the wall for a moment. He hadn't let himself know how close to the edge he was until there were suddenly more people between him and it.
"Security feeds are compromised," Kisame said, His gravelly voice carried easily over the distant percussion of gunfire. "Shikamaru's in their system, but they're fighting him for every camera. We've got maybe twenty minutes before they lock him out completely." He looked at the door, at the impacts still ringing against the frame, at the wounded operative on the floor, and his expression shifted into something that might have been respect for the opposition. "Hidan got everything out of guards from above. There's a second stairwell—far side of the facility, maintenance access, not on the primary schematics. If they're pinning us here, that route should be clear."
Sasuke didn't need to think he pushed off the wall. "I'm going."
Itachi turned. Beneath the mask, his eyes found Sasuke's—and held them the way they had when Sasuke was seven years old and had wandered too close to the estate's upper balcony railing. "No," he said, and stepped directly into the path between Sasuke and the stairwell opening.
Sasuke stopped. His jaw locked. His fingers found his chest without his permission. "The sedative is wearing off," he said. "Faster than Sakura expected. Twenty minutes, maybe less, I can't wait for this door to be cleared." He was already looking past Itachi's shoulder at the stairwell opening. "Every second we stand here is a second we don't have. I have to go. For him."
Itachi's jaw tightened—the only crack in the mask, visible for just a heartbeat before it smoothed away. "You're not thinking clearly. The bond is compromising your judgment."
"The bond is the only reason I know he's still alive," Sasuke replied, his voice dropping to something barely above a whisper. "He's down there. Right now. And every minute we stand here arguing, he gets further away."
Sakura stood up from the wounded operative after making sure he was secure, wiping her hands down the front of her tactical vest. She met Itachi's eyes directly. "I think it's the right call. We are sitting ducks here."
Itachi crossed the landing in two steps and gripped Sasuke's shoulder—not a restraining hold, not a tactical grip, but the grip of a man who had already lost everything once and knew exactly what it felt like. The gunfire still rang against the door. The wounded operative groaned. Neither registered. There was only Sasuke. There had only ever been Sasuke. "I cannot lose you," he said. His voice came out strained.
Sasuke's hand came up slowly and closed over Itachi's. He didn't remove it. For a moment he just held it there, his brother's grip on his shoulder, the way he had not let himself be held since he was small enough that the world still made sense. Then, carefully, he lifted it away. He kept hold of it a second longer than necessary before letting go. "Without him," he said, "there is no me left to lose."
Nobody moved. The gunfire still rang against the door frame—three rounds, pause, two rounds—and the sound of it filled the silence between them. Then Sakura stepped to Sasuke's side and looked at Itachi. "I'll be with him," she said.
A beat of silence. Then Gaara crossed the landing to stand at Sasuke's other shoulder. He did not look at Itachi when he spoke. He looked at Sasuke. "I will go as well." He paused. "We will be fine."
Itachi held their gaze for a long moment. His eyes moved across the three of them—Sasuke, Sakura, Gaara—and whatever calculation was happening behind them was not a fast one. His hand had come up slightly, the way it did when he was about to speak, then it dropped again.
"Go." Itachi's voice did not waver. "But you do not put your life in danger. You do not take unnecessary risks. You do not—" He stopped, his voice caught, "You come back."
Sasuke looked at his brother. Not the way he had been looking at him since the van—tactically, briefly, the way you looked at someone you needed to stay functional—but the way he had not let himself look since long before any of this. The lines at the corners of Itachi's eyes. The way he was holding himself very still, the way he only held himself still when he was working very hard not to show something. Sasuke had grown up reading that stillness and had spent years pretending he hadn't.
He nodded once. "I will."
Deidara chose that moment to break the silence, he clapped Sasuke on the shoulder, "Don't worry about the door," he said, already turning back toward the stairs. "By the time I'm done with it, there won't be a door. Or a corridor. Or—" He paused, considering. "Well. There'll be a hole. That's the important part."
"Deidara." Itachi's voice cut through the bravado.
"Controlled demolition," he said, waving a hand. "Minimal structural damage. I know." He was already moving past them toward the door, where the operatives still held the line. "You just don't understand what it takes to make something beautiful."
Sasuke turned toward the stairs. Sakura fell into step behind him, medical kit secured across her back. Gaara brought up the rear, his silence a constant pressure at their backs, his pale eyes tracking the stairwell above them.
Sasuke turned back once. Itachi had not stopped looking at him—standing very still in the way that meant something. Sasuke held it for one second, then turned and went through the door. Gaara took point without being asked, moving low and quiet around each corner before signaling them forward through corridors Sasuke hadn't seen yet. Sakura followed, checking the corners, keeping pace. Sasuke tried not letting himself think about anything except the next door, the next hallway, the next corner. It was easier that way.
The second stairwell appeared at the end of a service corridor lined with supply closets and a small break room where a half-empty coffee cup sat beside an open magazine. Gaara pulled the door and they descended in single file, weapons low, footsteps deliberately placed to minimize sound. The stairs were concrete, narrow, lit by the same emergency strips that had lined the memorial entrance—red-orange light that pooled at their feet and left their faces in shadow.
They stopped at the metal door marked SECURITY LEVEL 2. The last stairwell door had been quiet too, right before they opened it and the operative took a bullet. Sasuke took one side, Gaara the other. Sasuke nodded. Gaara's hand moved toward the handle—and stopped as it began to turn from the other side. All three of them pressed flat against the stairwell walls in the same instant, weapons up: Gaara dropping low with his barrel angled at knee height, Sakura covering head level, the door swinging inward between them with a soft pneumatic hiss.
Sasuke held his breath as he watched a figure step through first: a guard. Lean, muscular, with hollow cheeks and a predatory set to his mouth. His wrists were cuffed in front of him, the metal catching the dim light. He moved with the stiff compliance of someone who had very good reasons not to test the person behind him.
Behind him, pushing him forward with one hand braced between his shoulder blades, came a man in a white hospital gown. Red hair hung lank around a face that was too gaunt, too pale, the cheekbones standing out like architecture beneath skin that had seen too little sunlight. But the eyes were sharp—intelligent, assessing, moving across the stairwell in the half-second it took the door to finish opening—and the resemblance was unmistakable. The photograph pinned above Naruto's desk had shown this face smiling, healthy, alive with the particular intensity that ran in the family. This version of it was carved down to something harder, but it was the same face.
Sasuke lowered his weapon a fraction and held the group still with one raised fist. He waited until Kurama and the guard were fully inside the stairwell, until the door had swung shut behind them with its soft seal, and then he stepped out of the shadow and pulled off his tactical mask.
Kurama spun, the gun in his hand swinging up in an arc that ended with the barrel leveled at Sasuke's chest. His free hand snapped the guard's collar, yanking him backward as a body shield. "Stay back!" Kurama yelled the gun swinging wildly between Gaara, Sasuke and Sakura.
"We're not enemies," Sasuke said. Both hands raised, open, the mask dangling from one finger. "We came here to help."
The guard—Zaku read the half-second of attention shift like the opportunity it was. His elbow drove backward into Kurama's ribs with enough force to fold him, and then he was moving, bolting for the lower stairs.
Gaara didn't hesitate, be moved quick and caught Zaku by the collar mid-stride, then threw him into the wall with enough force to bounce him. His forearm pressed across Zaku's chest, pinning him, and the barrel of his gun came to rest against the guard's temple. He held him there.
Sakura pulled off her mask. She moved toward Kurama with her hands open, her medical kit visible at her hip, the blood on her gloves dried to a dark crust. "My name is Sakura Haruno. I am a doctor." Her voice was calm, as she approached Kurama slowly.
Kurama backed against the wall. His jaw was tight, the gun still in his hand though it had lowered several degrees, his eyes moving between all three of them. "I don't have time for this," He said, "I need to get to my brother."
Brother. Naruto. Sasuke's hand found the wall behind him without his permission. The tactical mask slipped through his fingers, "Where is he." Sasuke asked, before he could stop it, "Where is Naruto?"
Kurama's arm snapped up. The barrel found Sasuke's face in under a second—close enough that Sasuke could see the steadiness of the hand holding it. "How do you know his name?"
Sakura stepped between them before the standoff could calcify into something neither of them would walk back from. "We went to college with him." Her eyes held Kurama's without flinching. "He was a friend and a classmate."
Kurama held the gun level for another beat. His eyes moved across Sakura's face, reading something there—the steadiness, perhaps, or the lack of calculation—and then the barrel dropped. "Orochimaru took him," he said finally, "Before your operation started. Only Naruto. " His free hand found the wall behind him, bracing. "I believe he brought him to his private office. Lower laboratory level."
The hand bracing Sasuke against the wall curled into a fist. He turned and slammed it into the concrete. "Fuck." Only Naruto. The words wouldn't stop. Only Naruto, and there was only one reason for that—one reason Orochimaru would separate him from the others and take him somewhere private. Sasuke's bond mark burned under his collar like it had been pressed with something hot. Orochimaru knew. He had known, and he had taken Naruto specifically, deliberately, like a piece moved on a board—not to experiment on him, not yet. To use him. To draw Sasuke down.
"Let me go," Zaku said from against the wall, breaking Sasuke from his thoughts, Gaara's forearm still pressed across his chest. "I've told you everything I know. Just let me go."
"Shut up," Gaara hissed, the gun pressing harder into the Zaku's temple. Zaku gulped.
Gaara turned to Kurama. "How did you get out? What is the situation with the guard?"
"Medical staff. Woman named Karin. Passed me a note, came for all of us when your operation started." Kurama's voice was clipped, "Freed the prisoners. Another prisoner Lee is leading them toward the secondary exit with her now."
Gaara's expression shifted. Sasuke read the worry there, the same worry he held for Naruto. "Was there a prisoner named Shukaku among them?" Gaara asked.
"Yes." Kurama's eyes narrowed. "But he wasn't doing very good."
The stairwell went quiet. Gaara's forearm was still pressed across Zaku's chest, the gun still at his temple, but something had shifted in posture.
"He is my brother," he said, and Kurama's eyes widened.
Zaku chose this moment to drive his heel into the wall and lurch sideways. Gaara's grip snapped back into place immediately, slamming him flush against the concrete, the gun pressing harder into his temple. The moment was over.
Gaara looked at Sakura.
"Tsunade's medical team is outside," she said. "They're positioned and ready. They'll have him the moment he clears the perimeter."
Sasuke read Gaara's face before Gaara opened his mouth. The calculation was already happening—the distance to the secondary exit, the time it would take to intercept the group, the specific weight of a brother who was barely walking being led through a facility under siege. "Go," Sasuke said. "We'll manage from here."
Kurama gave Gaara the route—two junctions, a service corridor, the exit door beyond the medical wing, "Hurry. You might catch them."
Gaara nodded once. He released Zaku—transferring the guard's collar to Sasuke's grip with a single motion—and went through the stairwell door toward the cell block level without another word. The door sealed behind him with the same soft hiss, and then it was just the four of them in the narrow space, the red emergency light painting their faces in the same washed-out color, and the silence that followed had weight.
Sasuke looked at Kurama across the narrow stairwell. The red emergency light carved both their faces into something harder than they were, shadows collecting in the hollows beneath cheekbones and the lines beside mouths that had not smiled in a long time. Kurama held the gun steady, its barrel now leveled at Zaku's chest rather than Sasuke's.
"This stairwell is supposed to lead to Orochimaru's office," Kurama said, then nodded to Zaku, "He is supposed to know the way."
Zaku laughed. The sound was sharp and unpleasant, "Kimimaro is guarding Orochimaru," he said. "It doesn't matter how many of you there are. Kimimaro will kill you all." His eyes moved between them, calculating, "He's not like the other guards. He doesn't get tired. He doesn't feel pain. And he has never lost."
Sasuke's hand tightened on Zaku's collar. "It doesn't matter," he said. "Lead the way."
They started down the final flight. The stairs were narrower here, the emergency strips dimmer, the air colder with each step as they descended deeper into the facility's bedrock. Sasuke kept his grip on Zaku's collar, one hand free for his weapon, his eyes on the back of the guard's head. Sakura followed two steps behind, medical kit secured, her eyes constantly moving between the stairs ahead and the bond mark visible at the base of Sasuke's neck where his tactical gear had shifted. Kurama walked beside Sasuke, the gun still in his hand though it had lowered to point at the floor, his hospital gown whispering against his legs with each step.
"What was your relationship with my brother?" Kurama asked. The question came after twenty steps of silence. Sasuke tensed unsure how much to say. "This seems like a lot to go through for someone who just went to college with him."
"They were roommates," Sakura said, from behind them. She kept her voice easy, conversational, the way she might have said it standing outside a lecture hall. "Sasuke and Naruto. I had a class with both of them." She let a beat pass, then added, "Naruto talked about you. More than once."
Kurama turned his head. Looked at Sakura for a long moment. Then his eyes moved back to Sasuke. "What's Naruto's favorite food?"
The question hung in the cold air between them. Sasuke's jaw worked once, visibly, the muscle beneath his eye jumping.
"He should know if he was really his roommate," Kurama said to no one in particular.
Sasuke scoffed. "Ramen," he said. He didn't break stride. "Couldn't eat anything else. I made him actual food once—spent forty minutes on it—and he ate two bites and went back to his cup noodles like I'd personally offended him." He said it like a complaint. It didn't land like one. "Orange everything. Jacket, sheets, this pen he kept losing and finding and losing again. He studied with headphones on and still heard every word I said from across the room." A beat. "He left every cabinet door open. Every single one. I'd close them, turn around, and they were all open again."
Kurama nodded ready to say it was enough, that he believed Sasuke, but Sasuke just kept going.
"He laughed too loud everywhere. Library. Cafeteria. Didn't matter. He failed three exams in one week and came back to the room like he'd won something." The corner of his mouth moved, almost imperceptibly, in a direction that wasn't quite a smile and wasn't quite not one. "But the things he actually cared about—" Something shifted in his voice, a frequency change so slight it was barely there. "He had this plant on the windowsill. Ugly thing. It died twice. He brought it back both times." His jaw tightened. "He never gave up on anything. It was—" He stopped. Kept walking. "Annoying."
Sasuke was still talking when they reached the bottom of the stairs. Kurama had stopped on the final step. He was looking at Sasuke the way you look at something when you finally understand what you are seeing—not the face itself but the thing the face was doing without knowing it was doing anything at all. The grief in it. The specific, helpless quality of it. Kurama turned to the pink-haired doctor. She met his eyes and gave one small nod. He turned back to Sasuke, who was still talking, still walking, still not looking at anyone accept the guards back.
"He talked in his sleep. Not words. Sounds. Like he was having conversations with people who weren't there. He fell asleep at the desk more times than I could count and I sat there for twenty minutes listening to him make these noises and I thought—" He stopped. Swallowed. "Anyway is that enough?"
Sasuke turned. Sakura's face had gone careful and soft in a way he recognized as pity. Kurama was watching him with something else entirely—the focused, measuring look of someone who had just learned more than they were supposed to and was already deciding what to do with it. The cold air sat in Sasuke's lungs. He had not meant to say any of that.
Zaku snorted. "So not just a roommate." His eyes moved to Sasuke with something knowing and ugly in them. "I knew the little slut had to have been broken in alre—"
Sasuke's hand was at Zaku's throat before the word finished. He didn't decide to move. He was just moving—Zaku's back hitting the wall, the crack of it, the way the sound registered somewhere distant and unimportant. His fist connected once. Then again. He was aware of Sakura's voice behind him, the specific shape of his own name in her mouth, and it meant nothing. Zaku's cuffed hands came up and Sasuke knocked them aside. He heard himself breathing. He did not recognize the sound.
It was Kurama's grip on his left arm that finally reached him—not Sakura's voice, not the blood, but the specific weight of Naruto's brother pulling him back, and something in that landed where nothing else had.
Sasuke let himself be pulled. His chest heaved. Zaku slid down the wall, one eye swelling shut, lip split, spitting blood onto the concrete floor.
"We need him," Sakura said. Her voice was very controlled.
Sasuke looked at Zaku for a long moment. "For now," he said. Then he grabbed Zaku's arm and hauled him up, not caring about the injuries he had just inflicted. "Move."