
SG QUINN
Author
Novels by SG QUINN

Shadow bound: The beast within
Luca Blackthorn lives on the edge of two worlds, the human and the monstrous. Cursed with a power that can devour him from within, he struggles to control the beast that lurks beneath his skin. When Emilio, a ruthless mafia lord with a blood stained empire, resurfaces, Luca faces an enemy who will stop at nothing to destroy him.
Enter Grace Veyre, a lethal and unpredictable force from Emilio’s past. Once trained as his elite enforcer, she knows the darkness better than anyone and carries secrets that could either save or doom them both. Forced together by circumstance and survival, Luca and Grace navigate ambushes, betrayal, and relentless enemies, learning to trust each other in the shadows.
Every encounter is a test of skill and will, every decision a gamble with life and death. As the body count rises and Emilio’s schemes tighten like a noose, Luca must master his curse, and Grace must confront her past before it destroys everything.
In a city of fire, blood, and deceit, loyalty is fleeting, danger is constant, and only those who can fight together,and trust the untrustable, can survive.
Completed · 549 views
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Chapter: Chapter 182: The Last Dawn
The house was burning.Flames crawled across the old wood like veins of gold, eating through memories faster than I could hold them. Smoke rolled into the night, thick and heavy, carrying the scent of old paper and secrets that should never have survived this long. I stood in the yard with Grace beside me, watching everything collapse.It should have hurt more. But all I felt was a strange calm.The fire was loud and alive, the only sound left after the storm that had raged inside me for so long. I could still feel the echo of the curse beneath my skin, faint and fading, like a wound trying to remember why it ever bled. My father’s voice was gone. The shadows that once whispered his name were gone too.Only the fire remained.Grace’s hand found mine, grounding me. Her fingers were cold, but her grip was steady. She didn’t look at me. She kept her eyes on the flames, her expression unreadable in the light that flickered across her face.“You did it,” she said softly.I didn’t answer right awa
Last Updated: 2025-10-18
Chapter: Chapter 181: Echoes in the Blood
Night had swallowed the estate whole. The storm had broken hours ago, but the air still carried the scent of rain and iron. The corridors were silent except for the sound of my boots brushing against the marble floor. Every step felt heavier than the last, as if the house itself resisted where I was going.Grace followed close behind me, her flashlight trembling in her grip. “Are you sure about this?” she whispered.“No,” I said honestly. “But we’ve come too far to stop.”The key I found in my father’s study had led us down into the east wing, behind a wall I’d never noticed before. The plaster had cracked away in places, revealing faint lines—an outline of something that didn’t belong there. When I pressed my hand against it, a hollow sound answered back.I took a breath and pushed. The wall shifted with a soft groan. Cold air spilled out like the breath of something long buried.Grace’s light fell across stone steps descending into darkness.“God,” she murmured. “He built this beneath his
Last Updated: 2025-10-18
Chapter: Chapter 180: The Debt That Follows
The walk back to the mansion felt longer than it should have. The forest was quiet behind him, but the silence wasn’t peaceful anymore. It was heavy—like the earth itself was holding its breath. Every step he took seemed to echo deeper than sound, as if the woods were still watching him go.By the time he reached the outskirts of the estate, dawn was just starting to break. The sky was pale gray, with streaks of gold trying to push through the clouds. The old iron gates stood half-open, rusted from years of neglect. The wind moved through them with a soft, hollow sound, like a sigh.Luca paused before stepping inside. The mansion loomed over the gardens, a dark silhouette against the faint light. It had once been a symbol of his family’s pride; now it looked like a memory that refused to die. The windows were dark, the ivy climbing higher than before, wrapping around the stone like veins.He pushed the door open and stepped in. The echo of his boots followed him through the entrance hall
Last Updated: 2025-10-18
Chapter: Chapter 179: The Last Hunt
The woods was still.Even the wind refused to move. The faint smell of iron and smoke hung low, clinging to the damp air. Somewhere above, the moon cut through the clouds like a blade, throwing silver over the forest floor.Luca moved in silence, boots sinking into the earth. His breath was steady and controlled. The hunt had begun hours ago, yet not a single sound of prey reached his ears.It wasn’t an ordinary hunt. Not anymore.He wasn’t chasing an animal. He was chasing what was left of himself.Every step carried an echo—footsteps he couldn’t name, whispers that followed him like the wind’s reflection. His father used to bring him to these woods as a boy, teaching him how to read silence, how to listen to what the earth didn’t say. But that memory had long rotted into something darker.Now, the same forest that once meant peace felt alive in another way. Watching. Breathing. Waiting.He stopped beside a fallen log and crouched low, pressing his palm to the soil. It pulsed faintly beneat
Last Updated: 2025-10-18
Chapter: Chapter 178: The Curse That Breathed His Name
When I woke, the world felt wrong.The first thing I saw was the ceiling of my father’s study. The same cracked plaster, the same chandelier that never worked, swaying slightly as if it had been touched by wind. My throat was dry, my body heavy. The air smelled of dust and old whiskey.For a moment, I thought I’d dreamed everything—the catacombs, the mirror, the shadow. But when I sat up, my hand brushed against something sharp. Shards of glass.The desk before me was covered in them. Some pieces were clear, others blackened, as if burned from within. My reflection stared back at me from one of the larger fragments, pale and hollow-eyed.I was still here. Still breathing. But the silence in the room was too deep, too deliberate, like the world itself was holding its breath.My hand trembled as I reached for the shard. It was warm to the touch.Then I noticed the mark.Or rather, the absence of it. The place on my wrist where the sigil had burned for years was now bare—smooth, colorless. I sh
Last Updated: 2025-10-18
Chapter: Chapter 177: Where the Sun Does Not Rise
The city was still asleep when Luca left the mansion. The morning light had barely begun to break through the horizon, and even then, it seemed hesitant—as if Rome itself feared to wake. The air was thick with fog, curling between the narrow streets like smoke.He walked with his hands in his coat pockets, his mind racing, every sound amplified by the silence. His father’s voice still echoed in his head. Find me where the sun does not rise.The phrase replayed over and over. It didn’t sound like a metaphor anymore. It felt like a direction. A call.He had searched every record he could find in his father’s study before leaving. A ledger hidden inside one of the old drawers had contained a single note written in Vittorio’s handwriting. It was a location. An address, more like coordinates, scribbled beside three Latin words. Ubi sol non oritur.Now those words were leading him toward the southern edge of the city—toward the old catacombs.The deeper he went, the emptier the streets became. T
Last Updated: 2025-10-18

THE GHOST PROTOCOL
Adrian Kaine was once the deadliest operative in Shadow Unit, a black-ops division buried so deep in the government that most agents never lived long enough to speak of it. But when a mission in Kargath Province turned into a massacre, Adrian became the sole survivor, then the government’s most wanted traitor. His squad was slaughtered. Evidence was planted. His name was erased. And those who orchestrated the betrayal made sure he was declared dead.
They miscalculated.
Eighteen months later, Adrian resurfaces as a ghost in the ruins of his old headquarters, hunting for the truth buried beneath the ashes. But he is not the only one searching.
Marcus Hale, his former teammate and supposed friend, now leads a covert kill team tasked with eliminating him.
Above Marcus sits Colonel Mason Kade, the official who signed the order that condemned Adrian’s entire squad. And watching all of them from the shadows is a faceless mastermind known only by a single encrypted codename:
Cipher.
As Adrian follows a trail of classified leaks, dead operatives, and impossible coincidences, he uncovers a horrifying secret: a covert plan known as the Ashen Protocol, designed to rewrite the balance of global power—using bodies like his as the foundation stones.
But the deeper he digs, the more the truth twists around him.
Old allies hide new agendas.
Enemies speak with familiar voices.
And the real traitor may be closer than he has ever imagined.
Hunted by governments, mercenaries, and a ghost from his past, Adrian must become something colder than a soldier and deadlier than a weapon.
He must become the nightmare they tried to bury.
And this time…
he’s not the one running.
Ongoing · 158 views
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Chapter: CHAPTER FIFTY-FOUR: THE MEMORY THAT NEVER SLEPT
The first thing Adrian noticed was the silence.Not the absence of sound, there were alarms, distant gunfire, machinery screaming somewhere deep in the facility, but the absence of Cipher. That constant pressure, the low hum beneath thought itself, the sense of being watched even when the room was empty.It was gone.That frightened him more than anything else.He sat on the edge of the steel cot in the safe zone bunker Mara had dragged them into three hours earlier. Blood was still drying at his temple. His hands were steady, but his mind refused to be. When Cipher went quiet, it didn’t retreat. It repositioned.Lorenzo lay unconscious on the other side of the room, chest rising and falling. Elara sat beside him, jacket off, sleeves rolled, her hands still faintly shaking as she cleaned dried blood from his ear. She hadn’t looked at Adrian since they arrived.Mara stood near the reinforced door, speaking in a low voice into a comm unit that no longer bore any recognizable insignia.“
Last Updated: 2025-12-10
Chapter: CHAPTER FIFTY-THREE: THE SIGNAL BENEATH THE BONES
The siren wasn’t coming from above.Adrian realized that first.It wasn’t an alarm meant for people. It was too low, too rhythmic, a vibration that crawled along the spine rather than pierced the ears. It rose from beneath the concrete, from below the levels Cipher claimed didn’t exist.Mara stopped short at the junction, one hand raised. The corridor lights flickered, then steadied into a sickly amber.“That’s not a pursuit alert,” Lorenzo muttered, pushing himself upright despite the limp he refused to acknowledge. “That’s a summons.”Adrian felt it answering something inside him. Not pain. Not fear.Recognition.“Cipher’s falling back,” Adrian said quietly. “That signal isn’t defensive. It’s… archival.”Mara glanced at him sharply. “You’re sure?”“I don’t need to be,” he replied. “My nervous system already made the decision.”She didn’t like that, but she didn’t waste time arguing. She keyed open the service hatch at her feet and dropped into darkness without hesitation. Adrian fol
Last Updated: 2025-12-10
Chapter: CHAPTER FIFTY-TWO: THE ECHO THAT ANSWERED
Adrian came back to consciousness the way a man surfaces from deep water. Not all at once, not cleanly, but in fragments that burned.Sound first.A low, rhythmic thrum vibrating through metal. Heavy machinery. Generators. Something old and powerful refusing to die quietly.Then smell.Oil. Burnt wiring. Blood that had been exposed to air too long.Then pain.Sharp in his ribs. Dull behind his eyes. A persistent ache along the base of his skull where the system had once threaded itself through his thoughts like hands learning bone structure.He opened his eyes.The ceiling above him was real. Rusted steel plates bolted together unevenly. Water dripped from a crack, each drop echoing too loudly in the confined space. Emergency lights painted everything in intermittent red, giving the room the look of a wounded animal still breathing.He was lying on a gurney.Unrestrained.That alone told him things had shifted.Mara stood at a workbench across the room, her back to him, shoulders squa
Last Updated: 2025-12-10
Chapter: CHAPTER FIFTY-ONE: THE LIE THAT BREATHED
The first thing Adrian noticed was silence.Not the absence of sound, alarms still screamed somewhere distant, boots still thundered through corridors, but the silence inside his head. The constant pressure, the low hum of something watching him think, had vanished.That terrified him more than Cipher ever had.He lay still for two breaths longer than necessary, eyes closed, cataloging sensations the way he’d been trained to. Concrete beneath his spine. Heat from a nearby fire licking the air. The copper sting of blood at the back of his throat. Real pain. Real weight. Real time.When he finally opened his eyes, the world didn’t glitch.That confirmed it. He was out.Or at least… out enough.Mara crouched beside him, one knee on the floor, rifle angled down the corridor. The red emergency lights carved sharp shadows across her face, older than the woman he’d seen on the feeds, harder, scarred in places no simulation ever bothered to render accurately.“You’re back,” she said without l
Last Updated: 2025-12-10
Chapter: CHAPTER FIFTY: THE THING THAT LOVED HIM BACK
Fire alarms screamed like wounded animals.Red strobes washed the corridor in pulses that felt too close to a heartbeat. Adrian Kaine staggered forward, boots slipping on water and ash and something darker he refused to look at. His lungs burned. His skull rang. Every step felt like he was dragging himself out of a grave that kept changing its shape.Cipher soldiers flooded the corridor ahead, pouring in from breach points cut cleanly through concrete and steel. They moved with inhuman precision, faces hidden behind mirrored visors, rifles locked at chest height.Mara stood in front of him.Not shielding him.Holding position.Her weapon was raised, finger steady on the trigger, stance flawless. The kind of posture that only came from years of training that never truly left your bones.“You can walk?” she asked without looking back.“I can move,” Adrian rasped. “Same thing.”She nodded once. “Then you can survive.”Gunfire erupted.Mara fired first. Three shots. Controlled. Lethal. A
Last Updated: 2025-12-09
Chapter: CHAPTER FORTY-NINE: THE GHOST WHO REMEMBERS
Adrian came back to himself in fragments.Sound first. Not alarms this time, not the shriek of dying systems, but the deep, distant thud of artillery somewhere far above. Concrete trembling. A city under siege.Then weight. Real gravity pressing into his bones. His body hurt in a way no simulation ever managed dull, throbbing, uneven. Real pain meant real time.He opened his eyes.Low ceiling. Exposed cables. A strip of flickering fluorescent light that buzzed like an insect trapped behind glass. The room smelled of oil, antiseptic, and scorched metal.A safehouse.Not Cipher clean. Not Lumen white.Old-world ugly.He tried to sit up and failed, teeth grinding as pain flared along his ribs. A hand pressed firmly but gently against his chest.“Don’t,” a woman said. “You cracked two ribs and bruised a lung. You sit up, you bleed.”Mara.She crouched beside the cot, sleeves rolled up, dark hair pulled back, eyes sharp in a way that felt learned rather than inherited. There was blood on h
Last Updated: 2025-12-09