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Jim felt lighter than Spock remembered.
Not in a metaphorical sense, simply lighter. His body didn’t resist the lift the way it normally did. His weight settled wrong against Spock’s arms, loose in places where Jim usually held tension, head rolling instead of bracing, legs dragging rather than helping.
Spock had carried far heavier things on countless missions. He knew, in precise numbers, what he was capable of lifting. Jim’s mass fell comfortably within that range. His muscles trembled regardless, taxed by the strain of prolonged exposure to subzero temperatures.
"M'fine," Jim slurred against Spock's shoulder. "Put me down. I can walk."
Spock’s boots slid on the ice, catching, correcting. His thighs burned with every upward step. The air felt like broken glass in his lungs. He adjusted his grip, one arm under Jim’s knees, the other bracing his back, fingers digging into damp fabric stiff with half-frozen blood.
“You collapsed twice in the last 0.6 kilometers,” Spock said, voice tighter than he intended. “Your odds of reaching shelter unaided are approximately three percent.”
"Those are... terrible odds." Jim's laugh turned into a cough that made his whole body spasm. Blood flecked his lips.
His own fingers were numb now. He could feel the pressure of Jim’s weight, but not the texture of the uniform under his hands. When he flexed them, there was the slow, delayed ache of joints that were no longer responding at optimal speed.
A cave entrance finally appeared ahead, a dark slash in the white landscape, wrong and welcome all at once. Spock’s vision tunneled briefly, the edges dimming. He tightened his grip on Jim and forced his gaze to refocus.
One more incline. Five meters. Four.
He ducked into the cave, out of the wind that had been clawing at them for the past hour. The sudden absence of the storm’s howl left a hollow ringing in his ears. Cold air still knifed through the opening, but at least it was not carrying ice and shards of debris.
The darkness pressed close. He blinked, letting his pupils dilate, forcing his mind to catalogue details instead of surrendering to the heavy pull of exhaustion.
Rough stone walls. Debris near the back. Scattered pieces of wood and rock. A narrow tunnel leading deeper but not offering better shelter; it would only remove them from the transporter’s potential lock range.
This would have to suffice.
Spock lowered himself against the wall, control fraying at the edges as his knees threatened to buckle. He sank down carefully, keeping Jim cradled in his lap, unwilling to let the human’s body touch the frozen ground. Jim’s head fell against his chest, heavy and slack.
The jagged tear in the gold uniform shirt was worse up close. Blood had soaked through the fabric, warm in patches, sticky against Spock’s hand when he pressed down. He could feel the heat leaching away even as he tried to contain it.
Jim made a sound, somewhere between a gasp and a groan, his fingers twitching once against Spock’s sleeve before falling still.
"I apologize," Spock said. His voice felt thick in his throat. “I must apply pressure.”
Jim’s eyelids fluttered. The blue of his irises was washed-out, unfocused. “S’okay,” he murmured. “Not your fault.”
“I should have detected the geological instability,” Spock answered automatically. The admission burned. A miscalculation. A failure to properly model the rock strata beneath the surface ice. He had seen stress fractures, noted them, but underestimated the probability of collapse under their combined weight at that precise location.
Jim’s hand found his wrist with clumsy determination, fingers barely closing around it. “Spock. Don’t.”
They had had this argument too many times. When Jim stepped into the path of a blast meant for Spock, when he overrode safety recommendations, when he flung himself between danger and anyone else without hesitation. Spock tried to learn from each incident, to adjust variables and protocols. Jim, infuriatingly, never adjusted anything at all.
He would always choose the same equation. His life as expendable, everyone else’s as non-negotiable.
It terrified Spock more than he could articulate, even to himself.
“How long till they get through the storm?” Jim asked, breath feathering weakly against Spock’s collar.
Spock shifted just enough to glance at his chronometer. The numbers blurred at first; he had to blink twice before they resolved. “Based on current ion interference patterns… approximately twenty minutes until transporters regain function.”
"Great." Jim's eyes drifted shut. "Wake me when they get here."
"Jim." Spock tapped his face with his free hand, the one not pressed against the wound. "Stay awake."
“Can’t.” Jim’s lips barely moved. His words slurred at the edges. “Just… five minutes…”
Sleep. The word curled through Spock’s mind with dangerous appeal. His own muscles were beginning to tremble in fine, uncontrollable shivers. The cave air, only marginally warmer than outside, felt like a weight pushing him down, urging him to stillness.
“Sleep would be inadvisable,” he said, for both of them.
Jim shifted minutely, curling closer, attempting to burrow into Spock’s chest. “You're warm.”
Inaccurate. Spock’s core temperature had already dropped; he could feel it in the sluggishness of his thoughts, the way his limbs responded a fraction of a second too late to his commands. His ears throbbed with a distant, dull ache, and his hands… his hands no longer hurt. That was the part that concerned him.
Jim’s skin was colder still, though. Beside that, Spock’s chilled body would indeed feel warm.
Shock, Spock thought. Human vasoconstriction in response to blood loss and cold. Peripheral circulation compromised. Cardiac strain increasing.
The clinical assessment did nothing to combat the quiet terror unfurling under his ribs.
“We should attempt to generate heat,” Spock said. Speaking aloud helped, gave his mind a task to focus on. He studied the cave again, forcing his eyes to track, to evaluate. “I see debris over there. It may burn.”
Jim’s grip tightened on his wrist, weak but urgent.
“I will be three meters away at most,” Spock said. Three meters that suddenly felt like a chasm. “I will remain within sight.”
“Spock.” The way Jim said his name, no title, no rank, hit harder than any order. There was fear in it that Jim would never admit aloud. “Please. Just… stay.”
Spock hesitated. Logic dictated that a fire would significantly improve both their chances of survival. Leaving Jim for thirty seconds would be statistically justified.
But logic was fighting through molasses in his brain now, and the bond between them, thin but present, flared with Jim’s instinctive panic at even the idea of separation.
Compromise, then.
“I will not leave you,” Spock said. His arm refused to relinquish Jim’s weight. Instead, he extended his free hand, stretching until his shoulder protested, fingers brushing the nearest piece of wood.
The process was clumsy, inefficient. He dragged debris closer in increments, knuckles scraping stone, breath catching in his chest. Each movement sent a spike of cold pain through his fingers, followed by a frightening absence of sensation. The wood felt like nothing, weight and shape without texture.
It took twice as long as his calculations suggested it should.
He stacked the wood as evenly as his clumsy hand allowed. When he drew his phaser, his grip was wrong, off-balance; the weapon wobbled once before he tightened his hold. The cold had stripped his movements of Vulcan precision, but he adjusted the phaser setting with practiced care.
The beam touched dry splinters. Smoke curled up, then a reluctant flame. Small. Weak. Inadequate. He felt an irrational flare of anger at its fragility.
He stifled it. Any heat was better than none.
Spock shifted, pulling Jim closer to the nascent fire, angling his own body as windbreak and insulation.
Jim made a soft sound as the warmth reached him, some of the tension around his eyes easing. Spock’s chest loosened by a fraction.
Silence settled between them, broken by Jim’s ragged breaths and the unsteady pop of the fire. Spock listened to both, counting them, matching the cadence against the numbers in his head. He could feel through the bond how thin Jim’s consciousness had become, a faint, flickering light at the edge of his awareness.
He could also feel his own limits approaching.
Protect Jim. Keep him warm. Keep him conscious. Keep him breathing.
His own wellbeing was… secondary. Irrelevant.
“Tell me something,” Jim muttered after a while, voice thin, fraying. “Keep me awake.”
The request steadied Spock. A task. Parameters.
“Earlier this week, during drills, you almost blacked out,” he said. His words felt oddly distant to his own ears, the consonants not as precise as they should be. “You insisted it was a ‘dizzy spell.’ You grabbed the console to avoid collapsing.”
Jim’s mouth twitched. “Was nothing,” he whispered.
“You always insist it is nothing,” Spock said. He pressed a fraction harder on the wound, feeling fresh warmth seep through his numbed palm. “You downplay injuries even when they compromise you. You do not like to cause… concern.”
The word felt small compared to what he meant. Worry was a human thing, messy and uncontrolled. What he felt now was sharper, thinner, like ice lodged behind his ribs.
Jim’s lip twitched. “Don’t… like making people worry.”
“You are failing,” Spock said softly. “I am worried.”
Jim swallowed, barely conscious.
“Spock…” Jim's eyes opened, clearer suddenly. Urgent. "If I don't make it-"
"You will." Spock cut him off more harshly than he intended. The words scraped his already raw throat.
"If I don't," Jim continued stubbornly, "you need to promise me something."
“No.” Spock’s free hand rose to Jim’s face, heedless of the blood already there. His other hand stayed pressed firmly to the wound. “I will not make promises based on hypothetical scenarios where you do not survive. You are going to survive this.”
"I'm bleeding out in a cave. We both know-"
"I know that I am not going to lose you. I know that the Enterprise is working to retrieve us. I know that you are the most stubborn human I have ever encountered and you do not know how to quit." Spock caught Jim's hand and held it against his face. "So no. I will not discuss what happens if you die, because I am terrified of losing you."
Jim's thumb brushed across his cheekbone, "Spock. I need you to know something."
"Jim-"
"Just listen." Jim's breathing was getting worse, each word an effort. "This last year. With you. It's been the best year of my life. Finally getting to be with you. Actually with you. Not just serving together or being friends or dancing around it." Jim's eyes were drifting shut again. "Getting to wake up next to you. Fall asleep next to you. Having you look at me like... like I'm not just your captain."
Jim was fading. Spock felt it through the bond. The warm, bright presence that was always there, that constant hum of Jim's consciousness at the edge of his awareness, was dimming. Flickering.
“Jim.” His voice cracked over the single syllable. He shook Jim’s shoulder, fingers barely responsive. “Stay with me.”
No response. Jim's lips parted slightly, but no sound emerged.
The bond guttered. Weakened. Spock could feel Jim slipping away from him, the connection between them thinning.
He dragged his shaking hand up from the wound to Jim’s temple. His fingers barely felt the warmth of skin beneath them. Protocol said he should not meld in this state, with his control frayed by cold and fear. Protocol could go to hell.
The meld opened raggedly, less controlled insertion and more desperate plunge.
The mental landscape that was Jim, usually bright, kinetic, full of shifting thoughts and impressions, was scattered, fragments drifting in a dim grey. Edges blurred. Focus dissolving.
Jim. He reached deeper, grasping for something solid, anything to anchor to. Stay with me.
A flicker. Faint recognition, distant and weak.
What if I can’t? Jim’s thought brushed his mind, more feeling than words.
You can, Spock insisted. Logic became a weapon, a scaffold he clung to. You have survived worse. You survived three years with me as your first officer while I was too much of a coward to tell you what I wanted.
Jim's presence flickered with something like humor. That was pretty rough.
It was torture. Watching you with others. Knowing I wanted you and believing I could not have you.
The flicker brightened. Jim’s presence pressed closer, seeking warmth in the contact, in the bond. Spock wrapped his mental awareness around it, clutching it with every ounce of will he still possessed.
You were so jealous. Jim's consciousness brightened slightly. That time with the Orion ambassador. You barely spoke to me for three days.
You kissed her. In front of the entire bridge crew.
She kissed me. Diplomatic incident. I had to let her down easy.
I nearly broke the science console.
I noticed. Jim's mental presence pressed closer to his, seeking warmth. That's when I knew you wanted me too. That I wasn't imagining it.
Spock tightened his mental grip as he felt Jim start to slip again, his consciousness thinning. I have always wanted you. From the first time I saw you at the Academy. From the moment you sat in the captain's chair and made it yours. From every time you smiled at me across the bridge when no one else was looking. He faltered. You made me understand I did not have to be alone.
I love you. So much. You know that, right?
Spock did not answer in words. He poured everything he had left into the bond instead: fear, yes, and anger at himself, and the deep, steady devotion. He wrapped it around Jim like a blanket, like another source of heat.
It was not enough. He could feel Jim slipping despite it, the thread between them stretching thin.
No!
He broke the meld abruptly, heart hammering, lungs dragging in cold air that no longer seemed to hold enough oxygen.
Jim's head lolled against his shoulder, completely unconscious now. His pulse, under Spock’s fingers, was a faint, erratic flutter.
The warp core. Spock had watched Jim die through glass, had pressed his hand against it unable to touch, had screamed his name until his voice broke. He would not lose him again. Not like this. Not ever.
Spock’s vision dimmed at the edges. He forced his hand to his belt, fingers clumsy on the communicator.
He knew the interference was too strong. He had calculated the probabilities the moment the storm closed in around them. He knew the signal would not reach orbit.
He opened the channel anyway.
“Spock to Enterprise,” he rasped. “Medical emergency. Respond.”
Only static answered him.
He tried again, overriding every piece of logic screaming at him that it was futile. “Enterprise, respond! This is Commander Spock, do you read?”
More static, cruel, unchanging.
His breath hitched, the edges of restraint fraying. He flipped the communicator open a third time, as if repetition alone could force the universe to listen.
“Enterprise, please respond.”
Nothing.
The cave felt suddenly too small, the shadows crowding in. The fire was shrinking, the meager warmth barely touching the ice in his bones. Spock pulled Jim closer to his chest, curling around him, trying to put every millimeter of his body between Jim and the cold.
I am not ready, he thought, and this time the words escaped, a low, broken admission in the dark. “We have only had one year,” he said into Jim’s hair, his lips brushing skin that was far too cold. “I require more time. I require-”
He stopped. Breathing hurt. Speaking hurt.
“I require you,” he finished softly. His breath misted against Jim’s temple. “Since the beginning. Always.”
His hands shook so violently now that he had to lock his arms around Jim’s torso just to keep them from slipping. His feet were numb. His ears burned and then didn’t. A deep, heavy drowsiness crept up from the edges of his awareness, seductive in its promise of relief.
Sleep, his body suggested. Just for a moment. Close your eyes. Let go.
He seized on the one thing that could still override instinct: the idea of Jim alone in this cave, unshielded, unprotected. The image slammed into him like a physical blow. His mind recoiled.
He fed the fire again, more by stubbornness than coordination, scraping together every scrap of wood he could reach without relinquishing Jim. Sparks flared. Flames leapt an inch higher.
"When we return to the Enterprise," Spock said, his voice rough, "I am going to introduce you to my father. Properly. Not as my captain but as my..." Spock stopped, struggling with words. "As my t'hy'la.
His breath misted in the air between them. Jim didn’t move.
“He has been… expecting this,” Spock said. His thumb rubbed absently over the back of Jim’s knuckles, more to reassure himself than anything. “He informed me some time ago that my attachment to you was obvious. I disagreed. He was correct.”
Silence answered him. Jim’s hand stayed cold in his.
“You are going to wake up,” he said, more firmly. “You are going to open your eyes and complain about the temperature. You will insist you are ready to leave sickbay long before Doctor McCoy agrees. He will threaten to sedate you. I will support his decision.”
His voice steadied as he spoke, building a sequence he could hold onto.
“You will accuse me of betrayal,” he went on. “You will attempt to sign yourself out of medbay regardless. When you are finally released, we will return to our quarters. You will attempt to apologize by initiating intimacy before your injuries have fully healed. I will refuse on medical grounds. You will be displeased. I will find it… acceptable.”
He tightened his hold on Jim’s hand.
For a moment there was nothing but the soft crackle of the fire and the thin rasp of Jim’s breathing.
Then a sound cut through the quiet, high-pitched, mechanical, distant at first. It rose in frequency, threading into something sharply familiar.
Spock's head snapped up. The whine built in frequency, familiar.
"Enterprise to away team." Scotty's voice crackled through his communicator, suddenly clear. "Spock, do you read? We've got a lock on your signal."
Spock fumbled the device free with stiff fingers. “Medical emergency,” he said. The words tumbled out, harsh and too loud in the cave. “Captain Kirk is severely wounded and unconscious. Significant blood loss and shock. Request immediate transport”
“Transporter room, did you get that?” Uhura’s voice cut in, tight with focus. “Get them up now.”
The world dissolved.
-*-
Spock woke to the sound of Jim's voice.
"...pretty sure you're not supposed to sleep in that chair."
For a disorienting moment, Spock could not remember where he was. The words took too long to process, his mind still foggy with exhaustion. Then awareness returned in a rush, the sickbay, Jim's surgery, the chair he'd been sitting in.
His eyes snapped open.
Jim was awake, watching him with a tired but unmistakably amused expression. His color was better, not healthy yet, but no longer the frightening pallor of before. His eyes were clearer, focused, tracking Spock's face with the kind of attention that meant he was truly present.
Relief punched through Spock's chest so hard it stole his breath.
"Hey," Jim said softly. His voice was rough, damaged by intubation, but it was his voice.. "You look terrible."
Spock's hand was still wrapped around Jim's. He could not remember if he had maintained contact through sleep or if he had reached for Jim upon waking. It did not matter.
"You are awake," Spock said. It was an absurd statement, obviously Jim was awake, but his mind had not yet caught up with his mouth.
"Yeah." Jim's fingers twitched in his grip, a weak squeeze. "Bones says you saved my life."
Spock wanted to argue, to enumerate all the ways he had failed, but Jim was looking at him with such steady certainty that the words died in his throat.
"How long was I out?" Jim asked.
"Approximately seven hours since the surgery concluded. Fourteen hours since we were transported aboard." Spock answered.
Jim's eyebrows rose. "And you've been here the whole time?"
"Yes."
Something in Jim's expression shifted. The amusement faded into something softer, more vulnerable. "Spock..."
"I could not leave." The admission came out rougher than intended. "The bond was muted by anesthesia and I could not sense you clearly and the alternative to remaining here was unacceptable."
Jim was quiet for a moment, his blue eyes searching Spock's face. His thumb moved in a small arc across Spock's knuckles.
Jim's expression softened further. His fingers tightened around Spock's, not much strength behind it yet, but deliberate. "I was scared of leaving you."
Spock looked down at their joined hands. His fingertips were still faintly discolored from frostbite, the skin tender and overly sensitive. Jim's hand was warmer now, the IV fluids and thermal regulation bringing his temperature back to normal ranges. Such a contrast to the cave, where Spock had felt Jim's life leaching away with his heat.
“I meant what I said,” Jim murmured. “In the cave.”
Spock’s hand tightened around his.
His eyes drifted half-closed, but his voice stayed sure. “I’d do it again, you know. Push you out of the way. A hundred times. I don’t regret that.”
“I am aware,” Spock said quietly.
Jim's mouth curved. "I'll try to be a little more careful... with the life you care about.”
“I am not seeking to alter your nature,” Spock said. “Only to impress upon you that your absence would be…” His voice caught. “…unacceptable.”
Jim's free hand moved, reaching up to touch Spock's face. His fingers were weak, trembling slightly with the effort, but they found Spock's cheek and rested there. "Okay," he said softly. "Okay, I hear you."
Through the bond, Spock felt Jim's exhaustion, the dull ache of pain that even medication couldn't fully suppress, but beneath that, affection, warmth, that deeper current that was simply Jim's constant presence in Spock's awareness.
"You need to rest," Spock said.
"So do you." Jim's hand dropped back to the bed, the small movement taking visible effort. "You look like you haven't slept in days."
"I slept. Earlier. Briefly."
"In that chair. Which barely qualifies." Jim's eyes were drifting closed again despite his obvious attempt to stay awake. "Come here."
"Jim, you just had surgery-"
"I know. I'm not asking you to do anything that'll hurt me." Jim shifted slightly to one side of the bed, wincing but determined. Just-" Jim's hand patted the mattress beside him. "Closer. Please."
"If I cause you pain-"
"You won't." Jim's hand patted the space beside him. "Come on. I can feel how exhausted you are through the bond. You're about to fall over."
That was... accurate. Now that the adrenaline had fully drained away, Spock's body was insisting on rest with increasing urgency.
Spock stood carefully, every muscle protesting the movement after hours in the chair. He moved around to the other side of the bed, the side without IV lines and monitors, assessing the space available.
Spock lowered himself onto the biobed with painstaking care, hyper-aware of every shift in the mattress, every movement that might jostle Jim's injuries. He settled on his side, facing Jim, leaving several inches of careful distance between them.
Jim made a soft sound of disapproval and immediately closed that distance, tucking himself against Spock's chest. His head found the space beneath Spock's chin, his breath warm against Spock's throat.
"Better," Jim breathed, already starting to drift. "Much better."
Spock's hand found Jim's hair, fingers carding through it in a slow, soothing rhythm. Jim made a soft sound of contentment, burrowing closer.
Through the bond, Jim's presence flickered and shifted, his consciousness drifting through the landscapes of sleep. Spock reached toward that presence carefully, offering the mental equivalent of his physical touch.
Jim's presence leaned into the contact, seeking warmth the way he always did when his shields dropped in sleep. Spock wrapped his awareness around it, that protective instinct as natural as breathing.
I am here, he thought toward Jim's sleeping mind. You are safe.
The fear was still there, coiled beneath his ribs. The memory of Jim's blood on his hands, Jim's consciousness scattering, Jim's eyes closing perhaps for the last time, it would take more than a few hours to fade. Perhaps it would never fully fade. Perhaps it would simply become part of the background awareness he carried, the knowledge that loving Jim meant living with the constant possibility of loss.
Spock let his own eyes close, his cheek resting against Jim's hair. The exhaustion pulled at him with inexorable force, and this time he did not fight it. Jim was safe. The monitors would alert if anything changed. McCoy was nearby. It was acceptable to rest.
His breathing synchronized with Jim's, slow and deep. The bond between them pulsed with warmth, steady as a heartbeat. Spock's hand stilled in Jim's hair, his arm a careful weight around Jim's shoulders.
He would not lose this. Would not lose Jim.
-*-
McCoy pushed through the recovery room doors with his PADD in hand, ready to check on Jim and probably forcibly evict his stubborn Vulcan first officer from the premises if necessary.
He stopped short just inside the doorway.
Both of them were asleep in the biobed. Spock was on his back, one arm wrapped protectively around Jim, who was curled against his side with his head tucked beneath Spock's chin. Jim's hand was fisted loosely in Spock's shirt. Spock's cheek rested against Jim's hair. They were tangled together like they'd been sleeping this way for years, which, McCoy supposed, they probably had been.
He stood there for a long moment, PADD forgotten in his hand, just watching them sleep.
He'd been there in the transporter room when they'd materialized. Had seen the way Spock held Jim like he was the only thing keeping him tethered to reality. Had watched Spock's careful control fracture at the edges as he'd recited Jim's injuries with mechanical precision while looking like he might collapse himself.
He'd known, logically, that they were together. The whole ship knew. But seeing them like this drove home just how deeply they'd bonded. How much they needed each other.
Chapel appeared at his elbow, her own PADD in hand. She took in the scene and smiled softly.
"Should we wake them?" she whispered.
McCoy shook his head. "No. Leave them be. Jim's vitals are stable, Spock finally looks like he might actually be resting instead of just sitting vigil." He made a note on his PADD. "We'll check on them in a couple hours."
Chapel's smile widened. "Understood, Doctor."
McCoy took one last look at them, Jim's face peaceful in sleep, Spock's expression softer than McCoy had ever seen it, both of them holding onto each other like they'd found something worth keeping and quietly backed out of the room.
The doors hissed shut, leaving them to their rest.
"About damn time those two figured it out," McCoy muttered to Chapel as they walked back toward the main medbay.