"If we report you," Marcus said at last, his voice quiet but scraping like stone, "Instructor Seris isolates this room. The academy commanders lock us down for questioning. And if the Priest Hunters are truly infiltrating Highmere, drawing the commanders' attention to Room 17 is the exact same thing as drawing the Inquisition's eyes to us. We become collateral damage."
Cassian's hand stayed on the brass latch. Marcus's silver-grey eyes didn't leave him.
Frank River exhaled a slow, measured breath. He relaxed his posture, leaning back against the wooden frame of his bed. "Fear keeps you careful," Frank murmured. "Blind panic gets you executed. Marcus is right. If we hand you over, we don't buy our safety. We just buy an interrogation."
Jack blew out the lumen-match.
The room was plunged back into darkness, illuminated only by the pale moonlight filtering through the high, barred window. In the dim light, Jack's pale grey eyes met Cassian's. He didn't speak, but he gave a single, definitive nod.
"We don't report you," Marcus decided, his voice carrying the finality of a squad leader setting the terms of engagement. "But this is the end of the lies, Cassian. In the field, hesitation and secrets get people slaughtered. We cover for you. We keep our mouths shut about your past. But if danger is coming for this room, you tell us before it hits us. We stand together, or we die alone. Is that understood?"
Cassian felt a weight he hadn't known he was carrying lift from his chest. They had not sworn blind, storybook loyalty to a boy they barely knew. They had done something far stronger. They had forged a gritty, practical survival pact based on mutual trust. It was the truest expression of Kane's Seventh Root.
"Understood," Cassian said quietly, stepping away from the door. "No more lies in the field."
"Good," Marcus grunted, lying back against his thin mattress and closing his eyes against the pain in his ribs. "Now get some sleep. Instructor Seris will have us back in the yards at dawn, and you currently have one working arm. We're going to need all the rest we can get."
Cassian had barely reached his bed when three soft knocks sounded against the heavy oak door.
Every head in the room turned. Frank's hand drifted to his blades. Jack was simply no longer on his bed.
Marcus sighed through his teeth. "Open it, Ashford."
Cassian eased the door open. Tavin Morrison stood in the dark corridor in his sleeping tunic, his messy light-brown hair sticking up on one side, looking unrepentant.
"The walls between our rooms are very thin," Tavin said by way of greeting. "I want to be clear that I heard abso-fucking-lutely nothing about royal warrants or Priest Hunters. And that I'd also like to be part of whatever this is."
"You were eavesdropping," Frank said flatly.
"I was lying awake next to a roommate who snores like a collapsing mine," Tavin corrected. "The eavesdropping was incidental." He looked at Cassian, and the smirk thinned into something more serious. "Seris already put me on your squad. If Priest Hunters are coming for this room, I'd rather hear it from you than find out when they kick the door in. I'm terrible at keeping secrets. But I'm excellent at being a distraction. You've seen it."
Marcus stared at him for a long moment. "Same terms. No lies in the field."
"No lies in the field," Tavin agreed.
He held out his hand. Cassian gripped his forearm, the way they had in the frost of the outer territories. Tavin went back to his own room next door that night, but from then on, the wall between them was the thinnest wall in Highmere.
Jack reappeared on his bed as if he had never left it.
Dawn came grey and bitter over the southern courtyard. Instructor Seris stood beside a small wooden crate, her breath pluming, as the first-years who had survived the Field Hunt shuffled into a ragged line.
"Yesterday, you walked out of the outer territories on your own feet," she said. "That earns you the right to know exactly how weak you are."
She reached into the crate and lifted out a flat disc of smoked crystal, no wider than a palm, strung on a leather cord.
"Rank Sigils. Press it to your sternum, over your core. It reads your channels. It does not lie, it does not flatter, and it does not give a shit about your feelings. When you rank up, it will tell you. When you are about to burn yourself out, it will tell you that too." Her cold eyes swept the line. "Listen to it. The ones who don't, I bury."
Marcus went first. He pressed the crystal to his chest, and blue-white script flickered up through the smoke. He read it, grunted, and hung it around his neck. "Initiate Two. Ribs at sixty percent."
Frank's flared a calm, watery blue. Jack's barely glowed at all, the script so faint that only Jack could have read it, which seemed to suit him perfectly.
Cassian took his disc with his left hand and pressed it flat over his heart.
The crystal was cold. Then, all at once, it was warm. Golden light rose through the smoked glass like sunlight through deep water, forming lines of sharp, clean script.
[Cassian Ashford — Universe God Slayer Art]
Rank: Initiate I
Forms Recorded: Starbreaker Slash
Channel Integrity (Right Arm): 38% ⚠️
Warning: Do not channel through damaged limb.
He had expected that. He had not expected the final line.
It surfaced slowly beneath the others, darker than the rest, the letters flickering as though they had been written in ash instead of light.
▓▓ Past Life Record: SEALED ▓▓
Cassian's breath stopped.
"Initiate One?" Tavin leaned over his shoulder, wincing theatrically. "Ouch. Welcome to the bottom of the ladder, Ashford. I've had the place to myself for a year."
Tavin's eyes passed straight over the last line without stopping. So did Marcus's, when he glanced across. Neither of them blinked.
They couldn't see it.
Cassian looked away from the crystal. The dark line faded. He looked back, and it rose again, patient and certain, waiting only for him.
"Initiate One, Ashford," Seris noted as she passed. "Thirty-eight percent. Healer Esran will be thrilled." She moved on down the line without another word.
Cassian closed his fist around the disc until the edges bit into his palm. Someone had built this crystal to read living channels. But something beneath it had read him. Both of him.
Sealed, Cassian thought, slipping the cord over his head and tucking the Sigil beneath his tunic, where no one would see it glow. Sealed by whom?
Across the collapsed mountains, three months after Kairo had first walked through the Compound's gates, the jagged peaks surrounding the Demon Slayer Compound blotted out the stars.
There were no training yards here tonight. There were no wooden practice swords or padded sparring rings. The sun had set, and in the world of the Demon Slayers, sunset meant that the true horrors of the Mortal Realm were awake.
Kairo Ashford crouched in the freezing, ankle-deep mud of Ashenvale Forest.
The air was bitterly cold, smelling of rotting pine, damp earth, and the faint, coppery stench of sulfur. The darkness beneath the dense canopy was total. Kairo's breath plumed in the freezing air, his violet eyes scanning the jagged tree line. His heart hammered against his ribs, pumping adrenaline through his twelve-year-old body.
He was not in a controlled academy environment. He was on a live Night Hunt.
"Keep your spacing tight, but don't bunch up," a sharp, confident voice hissed from the shadows to Kairo's left. "If it drops from the canopy and you're standing shoulder-to-shoulder, it's going to crush three of you at once."
Renna Kade stepped out from behind the trunk of a dead oak tree. The twelve-year-old second-year squad leader—she had come through the Compound gates at eleven, and everyone knew it—moved with the silent grace of a seasoned predator. Her white hair caught the faint ambient light, and her sharp grey eyes scanned the darkness with aggressive confidence. In her hands, she gripped two wickedly curved crescent swords, their edges gleaming with lethal intent.
"We are tracking a low-tier stalker demon," Renna instructed, her voice barely a whisper. "It's been butchering the local wildlife and leaving the carcasses near the Compound perimeter to test our response time. It thinks we're prey. We are going to remind it that it is the prey."
Renna looked back at Kairo and the rest of Room 9, her chin lifting slightly. "I have seven confirmed demon kills. I know how these things move. They use the shadows to disorient you, and they feed on your panic. We use stealth, we use ourselves as bait, and when it commits, we engage. Do not freeze."
Kairo gripped the hilt of his standard-issue longsword. He felt the volatile hunger of the captured demonic essence—the Abyssal power—swirling inside his core. It was a dark, cosmic pressure that desperately wanted to be released. Kairo gritted his teeth, forcing the energy down. He remembered his father's teachings. The Fourth Root. Courage. Courage wasn't the absence of fear; it was the decision to move despite it.
To Kairo's right, Zeke Morrison stood perfectly still. The twelve-year-old trainee was six feet tall and unnervingly pale, his striking red eyes scanning the darkness. Zeke held a sharpened wooden stake in each hand, the heavy silver caps glinting coldly. Zeke was practically vibrating with tension, his rare Vampire Demon Slayer Art making him hyper-aware of the dark ambient energy surrounding them.
"It's circling us," Zeke murmured, his voice tight. "The Abyssal current in the air is shifting. It knows we're here."
A few yards away, Malik Frost knelt beside a frozen puddle. The twelve-year-old girl's light-blue hair was tied back tightly, her blue eyes narrowed in concentration. Malik placed her bare hand against the freezing mud, her Ice Demon Slayer Art allowing her to feel the micro-vibrations in the frozen ground.
"Footfalls," Malik whispered, her voice guarded and devoid of panic. "Heavy. Thirty yards out. Moving laterally."
"Ruben," Renna snapped quietly. "Eyes."
Ruben Veil was already moving. The twelve-year-old boy slipped out from the underbrush, his black curly hair plastered to his forehead with sweat. Ruben's sharp brown eyes darted across the tree line. His Ghost Demon Slayer Art made him uniquely sensitive to deceptive movement, allowing him to perceive the subtle, shifting layers of darkness that ordinary eyes would miss.
Ruben pointed toward a thick cluster of jagged, thorn-covered bushes to their direct left. "There. The shadows are dragging against the wind. It's trying to flank us."
"Engage!" Renna barked, dropping all pretense of stealth.
The forest erupted.
The demon tore out of the thorn bushes with a deafening, metallic screech that sounded like grinding steel. It was a horrific knot of twisted muscle and jagged bone plating. Its limbs were disproportionately long, ending in razor-sharp talons that gouged deep trenches into the frozen mud as it charged. Its jaw unhinged, revealing rows of needle-like teeth dripping with black, viscous saliva.
"Scatter!" Renna barked. Her leadership relied on speed and aggression. She lunged forward, her twin crescent swords igniting with the crackling, teal currents of her Storm Demon Slayer Art.
"Gale Fang!" Renna shouted. She swung her right blade, launching a compressed, crescent-shaped blade of high-pressure wind.
The wind-blade slammed into the demon's chest, shattering a layer of bone plating and knocking it slightly off balance. But the demon was fast. It recovered in a heartbeat, using its momentum to pivot on one hooked claw and swipe horizontally at Renna.
Renna brought both swords up, crossing them to block the strike, but the raw force of the demon sent her skidding backward through the mud, her boots digging deep trenches into the earth.
"Lock its legs!" Zeke yelled, sprinting forward.
Malik didn't hesitate. She threw her hands forward, channeling her Abyssal energy. The ambient moisture in the freezing air crystallized. A jagged spike of pure, black-tinted ice erupted from the mud, slamming into the demon's left knee and freezing its joint to the ground.
The demon shrieked, thrashing against the ice.
Zeke closed the distance in a blur of motion. His Vampire Demon Slayer Art fueled his speed, allowing him to slip past the demon's flailing claws. He drove a silver-capped wooden stake directly into the demon's unarmored ribs. The silver burned upon contact with the demonic flesh, causing the demon to roar in agony.
But Malik's ice shattered under the demon's desperate thrashing. The demon ripped its leg free, spinning hard. It slammed the back of its armored hand into Zeke's chest.
Zeke was thrown backward like a broken doll, crashing heavily into the trunk of a dead oak tree. He slumped to the ground, coughing violently, a thin line of blood trickling from the corner of his mouth.
"Zeke! Fuck—Zeke!" Kairo shouted, panic and rage flaring in his chest.
The demon ignored the fallen trainee, its glowing, predatory eyes locking onto Kairo. It recognized the deep, volatile Abyssal power radiating from the red-haired boy. It lowered its head and charged, its talons tearing up the earth.
Kairo stood his ground. He didn't have Cassian's defensive patience. He didn't have Zeke's speed or Renna's seasoned experience. He had pure, unadulterated cosmic violence, and he was terrified of it.
But if he didn't use it now, the demon was going to slaughter his squad.
The Sixth Root, Kane's voice echoed in his memory. Purpose. What must this strike accomplish?
Survival, Kairo answered silently. Annihilation.
Kairo gripped his sword with both hands and ripped the mental chains off his core. The captured demonic essence flooded his body like a tidal wave of freezing, dark liquid. The veins along his forearms turned black, bulging painfully against his skin. A churning aura of black-and-violet cosmic energy ignited around his blade, warping the air itself.
The power was intoxicating, exhilarating, and deeply, inherently wrong. It wanted to consume him. It wanted him to abandon his humanity and let the darkness take the reins.
Kairo forced it into the steel.
The demon leaped, its jaws opening wide to snap Kairo in half.
Kairo stepped directly into the demon's shadow, twisting his hips to generate maximum torque, and swung his longsword upward in a devastating, two-handed arc.
"First Form!" Kairo roared, his voice layered with a strange, echoing distortion. "Void Fang!"
The black-and-violet energy tore loose from the blade. A fang-shaped slash of compressed cosmic power ripped upward, cutting through the freezing air. It collided with the airborne demon.
The dark energy didn't just cut the demon; it consumed it. The Void Fang tore through the bone armor, obliterating the demon's chest cavity and shredding its Abyssal core. The demon didn't even have time to scream. It was thrown violently backward, crashing into the mud in two distinct, ruined pieces.
Black ash and foul-smelling smoke poured from the corpse as the demonic energy evaporated into the night air.
The forest fell silent, save for the ragged, desperate panting of the young trainees.
Kairo stood over the dissolving corpse, his sword trembling in his grip. The dark cosmic energy faded from the steel, but the black veins on his arms continued to throb with agonizing intensity. A sudden, overwhelming wave of physical exhaustion crashed into him. His knees buckled, and he dropped heavily into the freezing mud, gasping for air.
The Abyssal power had taken its toll on his twelve-year-old body. His muscles screamed in protest, and a sharp, burning pain settled behind his eyes.
A hand gripped his shoulder, hauling him roughly to his feet.
It was Renna. The white-haired squad leader had a deep, bleeding gash across her shoulder where the demon had clipped her armor, but her grey eyes were sharp and focused. She looked at the dissolving demon, then looked at Kairo's trembling hands and the black, corrupted veins slowly receding beneath his skin.
She recognized the destructive scale of the Form, and she recognized what it had cost him.
"You hit hard, Ashford," Renna said, her voice tight, her earlier cockiness gone. "Harder than anyone in my squad has a right to. Get those arms looked at before you sleep."
Ruben ran past them, kneeling beside Zeke. Malik was already there, checking Zeke's pulse. The pale boy groaned, spitting a mouthful of blood into the dirt, but he managed to push himself up into a sitting position.
"Next time," Zeke wheezed, looking up at Kairo with a grim, bloody smile, "kill it before it hits me."
Renna wiped the blood from her shoulder and sheathed her twin crescent swords. She looked at the battered, exhausted members of Room 9. They had survived their first live Night Hunt, but the reality of the Demon Slayer path had finally set in. They were children fighting a war against the dark, wielding the very poison that sought to destroy them.
"Harvest the essence core from the remains," Renna ordered, her voice shifting back into the uncompromising tone of a squad leader. "Then we fall back to the Vanguard Yard. We survived the night, squad. Let's get home."
Kairo sheathed his sword, his right hand still trembling. He looked up at the jagged, black canopy of Ashenvale Forest. The demon was dead, but the hunger inside his chest was still whispering, begging for another taste of the void.
Cassian was fighting his own war in the light of the God Slayers. But here, in the freezing mud of the outer territories, Kairo realized exactly what his second chance at life was going to cost him. If he wanted to protect his family, he had to master the darkness before it mastered him.
They reached the Vanguard Yard two hours before dawn.
The other Night Hunt squads were already filtering back through the iron gates, mud-caked and bloodied, and Kairo almost didn't notice the one that came in last. Four trainees, moving slowly. They were carrying something between them on a torn grey cloak.
Kairo saw the sandy hair first. Then the chipped tooth.
Oren Dask lay perfectly still on the cloak. There was no wound on him that Kairo could see. But thick black veins had spread across his freckled face and down his neck, branching like cracks in ice, all the way to his lips. His eyes were open, and they were flatly black.
"He flared on the hunt," one of Oren's squadmates said to no one, his voice hollow. "The demon had us pinned, and he pulled too much, and he couldn't... he couldn't put it back."
Zeke stopped walking. Malik put a hand over her mouth. Ruben looked away, his fingers finding the iron ring in his pocket.
Kairo couldn't move. He looked down at his own forearms, where the black veins from the Void Fang were still receding beneath his skin. The same veins. The same hunger. He had pulled too much tonight too. The only difference between him and the boy on that cloak was that Kairo had managed to put it back.
This time.
He could still feel the heel of black bread from that first morning, warm in his hand. Figured we could be terrible at this together.
Zeke's hand closed on his shoulder, hard. He didn't say I told you so. He didn't have to. He had already watched the Abyss take one person he loved.
"Don't," Zeke said quietly. "Don't you ever let it do that to you."
Kairo nodded. He couldn't trust his voice.
The Compound did not stop for the dead.
An hour later, Renna found them at the iron gates with a battered box tucked under her uninjured arm. Inside, nested in straw, lay a row of flat black crystal discs strung on leather cords.
"Rank Sigils," she said, her voice flat with exhaustion. "Everyone who comes back from a first Night Hunt gets one. Press it over your core. It tells you your rank. It tells you how deep the Abyss has its hooks in you." She hesitated. "Read it every morning. Every single one."
Ruben took his without looking at it. "Oren had one," he said quietly, turning the disc over in his fingers. "He showed me yesterday morning. It said eighty-one percent."
Nobody answered him.
Malik's Sigil bloomed a pale, frosted blue. Zeke's flared a deep, steady red. Kairo pressed his own crystal against his chest, over the place where the cosmic void churned, and the black glass flooded with violet light.
[Kairo Ashford — Cosmic Demon Slayer Art]
Rank: Initiate I
Forms Unlocked: First Form — Void Fang
Abyssal Saturation: 68% ⚠️
Channel Damage (Left Forearm): Severe
Warning: Saturation above 80% risks uncontained flare.
Eighty. Oren had been at eighty-one.
Then the last line crawled up out of the dark, slow and deliberate, flickering like a dying ember.
▓▓ Past Life Record: SEALED ▓▓
Kairo went cold from the inside out.
"Sixty-eight," Zeke murmured, reading over his shoulder, his red eyes fixed on the saturation line. "After one Form, Kairo. One."
Zeke said nothing about the bottom line. He didn't even look at it. Malik and Ruben didn't either.
Only me, Kairo realized. Only I can see it.
He thought of Cassian, somewhere on the far side of the world, maybe holding a crystal just like this one. If mine says this, Kairo thought, then does yours?
Above the canyon walls, the sky was beginning to turn grey. Somewhere across the world, Cassian's heartbeat pulsed steady through the bond, and Kairo held onto it like a rope in deep water.