The tunnel spat them out onto a precarious ledge overlooking The Resonator Basin. Thousands of small shanties were bolted directly into the cooling fins of the mountain's core. The air here vibrated with a low-frequency hum—the "White Noise" of the Spire's exhaust.
"Stay close, Emo," Sia whispered, a playful but sharp smirk tugging at the corner of her mouth as she glanced at Hajee's oversized black hoodie. "And try not to trip over your own mystery. This is The Flat-Line. People come here when they want to be forgotten by the ledger. But being forgotten has a price."
Hajee rolled his eyes beneath his hood but didn't counter the nickname. He just kept his hands in his pockets, his shoulders rolling in that loose, rhythmic sway.
The settlement was a maze of neon-streaked alleys and steam-vent marketplaces. Sia led him toward a specific hub—a repurposed water-reclamation plant. Standing by a rusted gate was a man who looked like a collection of scars. This was Coda, an old contact of Garrison's.
"Sia? Word in the pipes was your old man's place got trimmed," Coda rasped, his eyes darting to Hajee. "Who's the stray? He looks like he's mourning the death of a whole planet."
"He's with me, Coda. Call him Haji," Sia said, nudging Hajee with her elbow. "He's just going through his 'dark and brooding' phase. We need a moment to breathe before we hit the Sound Bar."
Coda spat a glob of grey phlegm into the gutter. "Breathe? Ain't nobody breathing easy today. We got 'Protectors' on the block."
THE CROOKED CHORDAs they walked through the central plaza, the vibe shifted. Three Rank 1 Echoes stood in the center of the market, their ivory armor scuffed and modified. Leading them was a Rank 2 Trimmer named Kord, a mercenary playing god. Kord was currently holding a merchant by the throat, his Resonance Blade humming at an agonizing frequency against the man's ear.
"The protection tax just went up, old man," Kord sneered. "Everything in this Basin belongs to the Spire. And since the Spire isn't looking today... it belongs to me."
Hajee's posture shattered. The loose sway was gone, replaced by a terrifying, high-tensile vibration. His eyes flared a radioactive emerald. He was a heartbeat away from launching when Coda's heavy, grease-stained hand slammed onto his shoulder.
"Hold your frequency, kid," Coda commanded. "It ain't just the merchant. Look past the armor. They've got six kids in that box. Orphans. Kord uses them as collateral. You go in swinging now, and he'll liquefy those kids' lungs just to keep you back. Sit down. You both look hungry and tired. You go out there now with that shaky rhythm, and you're just going to get those kids killed."
THE FLASHBACKCoda ushered them into his reinforced bunker, sliding two bowls of steaming protein-slurry toward them.
"Eat. Rest," Coda said, his voice a low rumble. "Use this time to strategize. Because you better make sure you two are in sync out there."
The words hit Hajee like a physical impact. In sync. The warmth of the bunker vanished, replaced by the biting, iron-scented chill of the Iron Mountain Warehouse.
He saw Kael standing by the shipping crates, checking his wraps in the dim amber light. Kael didn't look like a legend then; he just looked like his big brother. Kael had paused, looking Hajee right in the eye, and stuck out his bare, calloused fist—the solid, unshakable weight of a promise.
"In sync?" Kael had asked, his voice steady, anchoring Hajee in the quiet before the storm.
Hajee hadn't hesitated. He met Kael's fist with his own, skin-to-skin. "Always in sync," Hajee replied.
THE DEBT OF THE MANTISSia stared at the closed bunker door, her hand still tingling from the flashback. She looked at Hajee's back—the way his shoulders rolled in that heavy, rhythmic sway—and for a second, the violet neon of the Flat-Line faded away.
She wasn't a Mantis-style rogue anymore. She was twelve years old, shivering in a rain-slicked alley in the Low-End, her heart hammering against her ribs like a trapped bird. She had tried to pick the pocket of a Syndicate enforcer—a massive brute with a pneumatic Piston-Jaw that hissed steam with every breath.
He had caught her by the throat, his oversized hydraulic claw pinning her against the rusted corrugated wall. The metal was cold, and the piston in his arm groaned as he tightened his grip, the pressure ready to snap her neck like a dry twig. He was laughing, a metallic, distorted sound, promising to "repurpose" her for the scrap-yards.
Then, the rhythm of the alley changed.
A shadow had dropped from the rafters. She remembered a flash of gold and a sudden, violent grace. Kael had been the sun, but it was the younger one—Hajee—who had moved with a silent, surgical focus. Hajee hadn't used a weapon. He had stepped into the enforcer's guard, his hands moving in a blur of "Drunken" deflections. He'd tapped the pressure-valves on the brute's hydraulic arm, causing the piston to hiss and lock up. Before the enforcer could even reset his jaw to shout, Hajee had swept his legs and sent the giant crashing into the muck.
Hajee hadn't even looked for thanks. He'd just nodded at her—a silent, steady "get moving"—before vanishing back into the Static with his brother.
"Haji," Sia said softly, stopping him just as his hand touched the door lever.
Hajee paused, his head tilting slightly but not turning back. "The clock's ticking, Sia."
"I know why you're doing this. And it's not just about the kids," she said, her voice losing its playful edge. "You think you're alone in this mountain, but the Gutter has a long memory. You and Kael... you weren't just glitches. You were the only thing that made sense down here. You saved a lot of people who couldn't save themselves."
Hajee went still. He didn't ask how she knew. The Absolute Zero in his chest flickered—not with cold, but with a small spark of recognition hitting the ice.
"The rhythm stays the same," Hajee muttered. "Let's go."
THE TUNINGCoda slammed a toggle switch. A deep, tectonic bass rumbled through the floor, followed by a wall of industrial Gutter-drums and synth. "If you're going to find a rhythm," Coda yelled over the roar, "find one that can survive a storm!"
They didn't just spar; they collided.
Sia launched first, a blur of high-speed strikes. Hajee moved in that jagged, drunken stagger, swaying out of the way of her fists as the music pounded. They scrapped hard to the beat—Sia throwing rapid-fire flurries, Hajee moving like a glitch. Back and forth they went, strike and shadow. Every time Hajee took a stumble, Sia was there to provide the pivot point. They met in the center of the room, their forearms colliding in a rhythmic sequence—Clack-Clack-Thump-Clack—perfectly on the beat until they were moving as one shadow.
Coda cut the music.
In the sudden, ringing silence, the two of them turned toward each other, chests heaving in unison.
"In sync," they said together, the words falling perfectly in line.
Without looking away, they bumped side-fists—a sharp, grounding contact that solidified the bond.
"Always in sync," Hajee added, his voice finally level.
THE DEBT COLLECTORSThe "Day-Cycle" of the mountain was powering down, the artificial neon shifting into a dim, bruised violet.
"It's getting late," Coda rasped. "The mountain's powering down. Kord's going to move those kids to the transport now. He thinks the 'Static' is asleep."
Hajee pulled his hood up, his face disappearing into shadow. "He's wrong. The Static doesn't sleep. It just waits for the rhythm to break."
He looked at Sia and stuck out his bare fist once more. Sia met his knuckles with her own—a final, solid bump for the road.
"One Soul. One Rhythm," she murmured.
"Open the door, Coda," Hajee commanded. "We've got a debt to collect before the lights go out."