Chapter Text
Sometimes, when the pipes go quiet and the roof stops shaking, I hear my Gran-Gran’s voice echo through the dark.
She says the world used to turn in balance. That water, earth, fire, and air moved like breath in a sleeping giant—slow, steady, peaceful.
But I’ve never seen peace. Only rusted valves, ration lines, and the red bloom of war on white snow.
We live under the ice now. Not out of choice, but because the sky burns too often, and the earth doesn’t bury the dead fast enough.
They say the Avatar disappeared long ago—maybe fled, maybe killed, maybe hiding like the rest of us.
And so we wait. In tunnels. In silence.
For a sign. For a name. For someone who might finally end this.
Or maybe… the war ends with the Avatar.
Or because of them.
Gran-Gran says the world will shift again soon.
I just hope I’m still alive to see it.
Winter, 99 AG. Seven months into the Southern Uprising.
Katara dreamed of drowning.
Not in water—she never feared that—but in ice. Crushing, suffocating, the weight of a glacier pressing down on her ribs. And beneath it, something moving. A shadow in the blue-black depths, stirring like a sleeper beneath thin ice. A boy’s face, pale and gaunt, eyes wide and unseeing—
Then the shelling started.
She woke to the distant thump-thump-THUD of Fire Navy mortars chewing through the glacier above Taluqqriaq. The caverns trembled. Frost rained from the ceiling.
“Katara!”
Sokka’s voice was raw, frayed at the edges. He stood in the doorway of their dugout, his parka streaked with soot and something darker. His eyes were bloodshot, his jaw clenched so tight she could see the muscle twitching.
“Get up,” he snarled. “Now.”
No good morning. No, did you sleep? Just a hand yanking her to her feet, shoving a half-frozen medkit into her arms.
The wounded man in the tunnel beyond was barely recognizable as human.
He sat slumped against the ice wall, breathing in wet, shuddering gasps. His face was a ruin—burned on one side, the skin blistered and peeling. His left arm ended at the elbow in a blackened stump, hastily cauterized. His good hand clutched a rusted Fire Nation rifle, fingers locked around the trigger like rigor mortis had already taken him.
But his eyes were worse.
Empty. Fixed on nothing. The thousand-yard stare of a man who’d already left his body behind.
Katara swallowed bile. “What happened?”
Sokka’s laugh was a sharp, broken thing. “Ambush. Firebenders hit their patrol before they even reached the depot. Someone talked.”
He didn't say it like a question. He said it like a verdict.
Katara’s hands stilled over the dying man’s chest. The air in the tunnel was suddenly too thick, too still.
Then—movement. A shift in the shadows near the tunnel’s mouth.
A figure slumped forward, collapsing into the dim light.
It was Nukilik. One of the younger scouts. Sixteen, maybe. His parka was soaked through, one side blackened where a fireblast had grazed him. His lips were blue.
"They—they knew," he gasped. "Knew the route. Knew the signals." His fingers clawed at the ice, trembling. "Hama—she was at the rendezvous point before us. They were already waiting. She—"
A wet cough. Blood speckled the snow at his knees.
Sokka was already moving. He grabbed Nukilik by the front of his parka, hauling him up. "Where is she?"
Nukilik’s eyes flickered toward the tunnel’s dark mouth.
They didn’t need to follow the look.
Another shell hit overhead. Closer.
The ice screamed.
Nukilik’s breath hitched. "She tried to run. They—they didn’t even take her. Just—"
He didn’t finish.
He didn’t need to.
Sokka let him go.
The scout crumpled to the ground, his shoulders shaking. Not from the cold.
Sokka turned away, his boots crunching on frost and frozen blood. "Move him. Now."
Katara didn’t argue. She hooked Nukilik’s arm over her shoulder, half-dragging him deeper into the warren of ice and shadow. The dying man stayed where he was. No time. No supplies. No mercy left.
The tunnels narrowed, then opened like a wound.
Taluqqriaq.
The city—if you could call it that—was a gutted, gasping thing. A carcass of ice and desperation.
It had been Wolf Cove, once. Before the Fire Nation burned it to the waterline. Before the survivors clawed their way into the glacier’s belly and called it home. Now, it was a maze of half-collapsed caverns and smuggler-cut passages, lit by flickering oil lamps and the sickly glow of spirit crystals embedded in the walls. The air stank of sweat, burning seal fat, and the iron-tang of old blood.
And it was loud.
Voices echoed off the ice—shouts, sobs, the low, constant murmur of people who had stopped praying and started bargaining. A child wailed somewhere. A mother hissed at them to shut up, shut up before they hear us.
Sokka didn’t slow. He shoved through the press of bodies, his face a mask. Katara followed, Nukilik’s weight dragging at her.
They passed a group of warriors sharpening whalebone spears. Passed a huddle of elders picking through a meager haul of stolen Fire Nation rations. Passed a man with a gut wound moaning into his hands while a waterbender too young for this shit tried to knit his insides back together.
Then—the command post.
Such as it was.
A hollowed-out alcove, barely big enough for five people to stand shoulder-to-shoulder. Maps were carved into the ice walls, scratched and re-scratched as routes were burned and safe houses collapsed. A rusted Fire Nation radio hissed static in the corner.
Bato looked up as they entered. His face was all hard lines and deeper shadows.
"Sokka."
"They knew." Sokka’s voice was flat. "Hama’s gone. The depot’s gone. The patrol’s gone."
Bato closed his eyes. Just for a second. Just long enough for the ice to creak under another distant impact, for the lamplight to shudder against the hollows of his face. When he opened them again, his gaze went straight to the radio—that fucking radio, its cracked speaker still spitting static like a dying man's last breaths.
Yuka caught the look. Her bandaged fingers twitched away from the dials. "Nothing but spirits on the air tonight."
The words hung there, sharp as a skinning knife left out in the cold.
Sokka exhaled through his nose, fogging the air between them. He reached for the map knife—not Bato's, but his own, the one he'd ground from a Fire Nation bayonet. The blade caught the light as he dragged it across the ice-wall, carving a fresh line through the old scars.
"Eastern fissures are shit," he said, too calm. "Half-flooded. No cover once you're past the first bend."
Bato's jaw worked. "Better than a straight shot through a Fire Nation kill zone."
Nukilik made a wet sound in the back of his throat. Katara didn't turn to look. She already knew what she'd see—the glaze in his eyes, the way his fingers kept flexing like he was still trying to clutch his spear. Like his body hadn't realized yet that he'd dropped it back in the snow.
The radio crackled.
For one stupid, breathless second, everyone froze.
Then—nothing. Just the static, and the ice groaning overhead, and the drip-drip-drip of meltwater eating away at their fucking lives.
Yuka's laugh was a broken thing. "Guess that's our answer."
Sokka drove his knife into the table. The vibration ran up Katara's arms like a second pulse.
Outside, the wind rose to a howl. Somewhere in the warren of tunnels, a baby started crying—thin, reedy wails that cut off too quick. Smothered. The way all good warnings were these days.
Bato finally moved, rolling his shoulders like he could shed the weight pressing down on them. "Seal Tunnel Three. Reroute at dawn." His eyes found Katara's. "You're on medic rotation."
She opened her mouth—to argue, to scream, to ask when the fuck this became normal—but Nukilik slumped against her shoulder then, his breath coming in ragged bursts.
When she looked down, his pupils were blown wide. Shock. Or maybe just the realization, finally sinking in.
They were all going to die here.
The knife trembled in the table. The static hissed.
And beneath it all, so quiet she almost missed it—the ice itself seemed to hum.
Not a sound, exactly. A pressure. A vibration in her bones, deeper than any shelling. A low, constant reminder that the glacier above them was not dead. It shifted. It listened. It remembered.
Katara moved.
Not out of choice. Out of habit. Muscle memory. The same way you breathe, the same way you keep walking after seeing a body you know. No thought, just inertia and the stink of adrenaline clinging to her clothes.
She dragged Nukilik down a side corridor toward the overflow barracks—what used to be cold storage before the wounded overflowed every clean bed. The deeper she went, the tighter the walls got. Ice pressed in from every side, blue-black and striated with old stress lines like veins through glass. Spirit crystals flickered overhead, weak and dying, casting everything in a bruised glow.
They passed under old hanging tarps, stitched from Fire Nation tents and whalebone frames. Some still smelled like napalm.
She turned a corner—and stopped.
Children.
Three of them. No older than seven. Two boys and a girl, hunched in a circle around a pile of carved snow figures—crude shapes with soot-smudged faces and painted flame insignias on their chests. Fire Nation soldiers.
The girl stood tall, arms outstretched, a makeshift spear in one hand. Her other hand mimicked a waterbending stance—sloppy, stiff, but unmistakable.
“I get the eyes,” she said flatly, and drove the stick down with a grunt.
The snow figure cracked in half. One of Nukilik s grabbed the “corpse,” flipped it onto its belly, and mimed cutting its throat with a shard of bone. “He screamed like a pig-seal,” Nukilik said.
They laughed.
Not loud. Not the shriek of children playing. A quiet, practiced laugh. Like they were mimicking something they'd seen grown-ups do after a kill. One of them glanced over at Katara, not embarrassed, not ashamed—just watchful.
Like a scout.
Katara looked at the pile of figures. There were ten. Four lay in pieces. One had red berries where the eyes used to be. She didn’t ask what that meant. She didn’t need to.
Nukilik stirred behind her. A low groan.
The children didn’t flinch.
The smallest boy turned back to the game and said, “My turn to play the firebender.”
They kept moving.
Past the overcrowded sick dens, where moans bled through stitched-together walls of tarp and whale hide. Past the woman cradling a swaddled bundle that didn’t cry anymore. She was humming to it. Off-key. Rocking gently, as if that could reverse rigor mortis.
Past a whisper-fight between two half-starved men, clawing at each other over a dented can of condensed fish. One of them hissed, “My kid needs it more.”
The other didn’t answer. Just raised his hand—and Katara didn’t wait to see if he used it.
Nukilik beside her—barely sixteen, face still swollen from the cold—kept his head low and his steps close behind.
He finally spoke, voice cracking from the dry rot in his throat. “How long has it been like this down here?”
Katara didn’t look back.
“How long?” he asked again.
She stopped beside a split in the tunnel and adjusted Nukilik’s weight over her shoulder. He was limp now, breath shallow and wet. The heatstone had barely helped.
“Define ‘this,’” she said, voice flat.
Nukilik hesitated. “The—smell. The—”
He gestured vaguely. At the dark. The rot. The blood on the walls that nobody even scrubbed off anymore.
Katara shrugged. “This is Tuesday.”
She kept walking.
He didn’t follow immediately.
It was a pit. A gullet carved into the glacier’s underside. A grave with torches still flickering inside it. It had once been a smuggler's depot—quick routes, escape maps, caches for weapons and salt meat. Now it was home. If you could call a body cavity a home.
The walls dripped. Not water—just melt runoff thick with god-knows-what from the upper tunnels. Ice etched with soot tags and smuggler runes, now buried under graffiti, kill marks, warnings, names. Whole families had written themselves into the ice. We were here. We lived.
Some of those names were scratched out, deeply, until the wall scarred white. Katara didn’t ask why. No one did. You could live long enough to be hated for it.
They passed a sleeping quarter marked by crates and bloodied sheets. Someone had hung a windchime made of shell casings and chipped porcelain from the refugee barges. It clinked softly when they passed—almost sweet, if you didn’t know those casings were still warm when they were stripped off bodies.
“Is that a—body?” Nukilik asked, pointing at the form slumped by the side.
“Yeah,” Katara said.
“Should we—?”
“No.”
Nukilik opened his mouth again, then stopped. He didn’t ask why.
Good. He was learning.
They reached the barracks.
If you could call it that.
The tunnel widened like a wound, scraped open by water pressure years ago. Someone had wedged three rows of bunk frames in there, stacked like coffins. Blood-stained blankets, limp lanterns, and a smell like hot meat and old leather filled the air.
The wounded coughed in the dark.
One of them whispered prayers in a tongue Katara didn’t know. One was already dead, mouth open, frostbitten fingers still curled like he’d tried to grab something that wasn’t there.
Katara lowered Nukilik onto an empty cot.
He whimpered as the warmth left her shoulder.
Nukilik knelt beside him. “What do I do?”
Katara pressed a wrapped heatstone beneath Nukilik’s ribs. Checked his throat. Still had a pulse—barely.
“You keep him warm. You keep him quiet. You wait.”
“For what?”
Katara stood up, adjusted her coat, and stared at the flickering lantern above.
“For the bleeding to stop,” she said. “Or for his breath too.”
That was it. That was triage.
The hum in the ice hadn’t stopped.
Not a noise. More like pressure. Like something behind the glacier was awake and restless, scratching at its walls. A hum that buzzed through her teeth and lived in the hollows of her bones.
“Is it always like that?” Nukilik asked, staring at the walls. “The noise?”
Katara nodded. “Sometimes louder.”
“Is it—earthquake? Spirits?”
“No.”
“Then what is it?”
She didn’t answer right away. Just looked at the wall across from her—at the old burn mark in the shape of a hand, charred deep into the ice.
“Something stopped answering,” she said finally. “Up top. HQ, patrols, supply routes. Even the relay radio.”
Nukilik swallowed. “What does that mean?”
Katara didn’t blink.
“It means the screaming’s about to start again.”
She turned and walked back into the corridor.
And the ice, always listening, hummed a little louder.