BackBirch’s Claim: Blood and Thorn

Chapter 2 – Bonded Prisoner

BIRCH

The east wing of the Winter Court is a mausoleum of ice and silence.

My new chambers—*his* chambers—stretch before me like a gilded cage. Walls of blackened thornwood, inlaid with veins of frozen silver. A ceiling carved into the shape of a dying forest, branches frozen mid-collapse. The floor is polished obsidian, reflecting the pale blue torchlight like shards of broken sky. No windows. No mirrors. Just doors—too many doors—leading into shadowed alcoves, private baths, weapon rooms, and a study I know I’ll never be allowed to enter.

And at the center of it all: the bed.

Massive. Carved from a single slab of black ice, veined with thorned roots that pulse faintly, as if alive. Furs of wolf and raven draped across it. No warmth. No softness. Just power. Dominion. A statement: *This is where I sleep. This is where I rule. This is where you will kneel.*

I stand just inside the threshold, my gloves still in hand, my breath shallow. The wound on my palm throbs—raw, bleeding, the thorned mark a dark, curling sigil beneath the skin. It *itches*. Not with infection. With magic. With *him*.

The bond.

It’s still there. A low, insistent hum beneath my ribs, like a second heartbeat. Every time I try to move further from the bed, the pain flares—sharp, sudden, a knife twisting in my side. When I step back toward it, the ache eases. Not gone. Just… manageable.

Proximity. That’s the leash.

Kael shut the door behind me with a soft click. No lock. No bars. But I feel the weight of it anyway. Guards outside. Eyes in the shadows. And Cassian—somewhere—watching, waiting, *testing*.

I drop my gloves onto a side table. My fingers tremble. Not from fear. From rage. From the heat still coiling in my belly, the phantom press of his body against mine, the way his voice dropped when he said, *You’re mine.*

I wasn’t supposed to feel anything.

I was supposed to walk in, lie, get close, kill.

Simple.

Clean.

But the moment our skin touched, everything changed. The bond didn’t just bind us—it *awakened* something. In him. In me. In the blood that runs through us both.

And worse—

My body *responded*.

I press a hand to my stomach, trying to steady myself. The memory of that surge—heat, hunger, a deep, aching *pull*—makes my thighs clench. My skin still burns where his breath touched me. My pulse still stutters when I think of the way his eyes darkened, the way his thumb brushed my wrist, the way he *knew*.

He knew I wanted him.

Even if I hate him.

Even if I kill him.

My gaze lands on the bed again. I take a step toward it. The pain in my side dulls. Another step. Better. I reach the edge, press my palm flat against the icy surface. It doesn’t burn. Doesn’t freeze. It just… hums. In sync with the mark on my hand.

This isn’t just a bond.

It’s a *claim*.

And Cassian Thorn didn’t just bind me.

He marked me.

I turn away, pacing to the far end of the room. Ten steps. Eleven. Twelve. The pain returns—slow at first, then sharp, like needles under my skin. I grit my teeth, keep walking. Thirteen. Fourteen—

A wave of dizziness hits me. My vision blurs. I stumble, catch myself on the wall. The obsidian is cold, but it’s the fire in my blood that makes me gasp. My breath comes in short, ragged bursts. My heart hammers—too fast, too hard. The thorned mark on my palm *pulses*, black veins spreading up my wrist, crawling toward my elbow.

I sink to my knees.

“No,” I whisper, pressing my forehead to the wall. “Not like this. Not weak.”

But the bond doesn’t care.

It wants me close. It wants me *near him*. And if I defy it?

It will make me suffer.

I crawl back toward the bed, each movement agony. The pain lessens with every inch. By the time I reach the edge, I can breathe again. I drag myself onto the furs, curling on my side, clutching my injured hand to my chest.

Safe.

Not free. Not even close.

But safe.

I close my eyes. The cold doesn’t bother me. I’ve slept in worse. In caves. In ruins. In the ashes of my coven’s temple, wrapped in the charred robes of the dead.

But this?

This is different.

This is *his* space. His scent—winter pine, iron, something ancient and dark—clings to the furs, to the air, to *me*. I can’t escape it. Can’t wash it off. It’s in my lungs. In my blood.

And the bond?

It’s not just physical.

It’s *emotional*. I can feel it—his presence, distant but undeniable, like a storm on the horizon. Cold. Controlled. But underneath? Something restless. Something *hungry*.

I hate him.

I *have* to hate him.

He killed my people. Stole our magic. Burned our legacy to ash.

And yet—

When he touched me, when the thorns erupted, when our blood mingled on the floor—

I felt something else.

Recognition.

Not just from him. From *me*. From the thorn-blood in my veins. It *knew* him. It *answered* him.

Which means—

He’s not just the thief of the Heartroot.

He’s part of it.

Part of *me*.

The thought makes my stomach twist. I roll onto my back, staring up at the frozen forest above. The branches look like claws. Like hands reaching down to drag me under.

I came here for revenge.

But revenge doesn’t explain this bond.

It doesn’t explain why our magic reacted the way it did.

It doesn’t explain why, when he leaned in and whispered in my ear, my body arched toward him like a bowstring pulled too tight.

A knock at the door.

I don’t answer.

It opens anyway.

Kael steps in, silent as a shadow. He’s tall, broad-shouldered, dressed in the dark leathers of Cassian’s guard. His eyes—amber, sharp—are on me instantly. Assessing. Not hostile. Not kind. Just… watchful.

“You’re not supposed to be in here,” I say, voice rough.

“I’m not here as a guard,” he says. “I’m here as someone who’s seen what that bond does.”

He closes the door behind him, steps further into the room. Stops just outside the pain radius. Smart.

“It’s not natural,” he says. “The Thorn Pact. It’s been forbidden for centuries. No one’s seen it since the Fae Wars.”

“Then why is it on us?” I ask.

“That’s the question, isn’t it?” He studies me. “You don’t belong to the Eastern Coven. I can smell it. Your scent—thorn and fire—it’s not witch. Not fully. And Cassian? He’s half-witch himself. Hides it. But I’ve seen the way his magic flickers when he’s angry. Like yours.”

My breath catches. “You’re saying we’re—”

“Related?” He shakes his head. “Not by blood. Not that I can tell. But your magic? It’s the same *kind*. Like two flames from the same torch.”

I sit up slowly. The pain flares, but I ignore it. “So the bond—it’s not an accident?”

“No.” He steps closer, voice dropping. “Someone *wanted* this. Someone engineered it. And they’re watching to see what happens.”

My skin prickles. “Who?”

“The Summer Court?” He shrugs. “The ISO? Cassian has enemies everywhere. But whoever did this—they’re playing a long game. And you and Cassian?” He looks at me, eyes dark. “You’re the pieces.”

I look down at my hand. The thorned mark still pulses, faint but steady. “Then why bind us like this? Why not just kill him?”

“Because killing him is easy,” Kael says. “Destroying him? That takes time. And what better way to destroy a king than to force him to bond with the one person who wants him dead?”

The words hit me like ice water.

They’re not trying to kill Cassian.

They’re trying to *break* him.

And I’m the weapon.

Kael watches me, unreadable. “You should know something else. The bond—it’s not just pain if you’re apart. It’s *heat*. The longer you’re near him, the more it builds. Deny it, and it turns to fever. Feed it…” He pauses. “And it turns to something else.”

“Desire,” I whisper.

He nods. “Yes. And the bond doesn’t care if you hate him. It only cares that you’re *connected*. And the more you fight it, the worse it gets.”

I close my eyes. “So I’m trapped. Physically. Magically. Emotionally.”

“Yes.”

“And Cassian?”

“He’s trapped too.” Kael’s voice is almost gentle. “But he won’t show it. He’ll pretend he’s in control. That he *wanted* this. But I’ve known him for twenty years. I’ve never seen him hesitate. Not until you.”

My eyes snap open. “What do you mean?”

“When the thorns erupted, when the bond formed—he *flinched*. Just once. But I saw it. And when he looked at you after? It wasn’t just possession. It was… *recognition*.”

My throat tightens.

“He knows,” Kael says. “He knows this bond means something. And he’s afraid of what that means.”

I want to deny it. Want to say he’s wrong. That Cassian Thorn is a monster. A killer. A thief.

But the way he touched me—

The way his breath caught—

The way his heart *stuttered* when I slammed into his chest—

It wasn’t just the bond.

It was *him*.

Kael steps back. “I shouldn’t have said anything. But you need to know. You’re not just a prisoner here. You’re a weapon. And the person who bound you to him?” He meets my gaze. “They’re not done yet.”

He turns to leave.

“Kael,” I say.

He pauses.

“Why tell me this?”

He looks back. “Because for the first time in twenty years, I’ve seen Cassian look at someone like they *matter*. And if you’re going to destroy him…” He hesitates. “I’d rather it be for a reason that’s true. Not because someone else pulled the strings.”

Then he’s gone.

The door clicks shut.

I’m alone again.

But the room feels different now. Heavier. Fuller. Like the truth has seeped into the walls.

I’m not just here to kill Cassian.

I’m here because someone *put* me here.

And the bond?

It’s not a curse.

It’s a *test*.

I rise from the bed, ignoring the flare of pain. I walk to the basin in the corner, splash cold water on my face. My reflection in the silvered bowl is pale, sharp-eyed, lips still parted from the pain. But there’s something else in my gaze now.

Determination.

I came here for revenge.

But revenge is a knife in the dark.

What I need now?

Is the truth.

And to get it, I’ll have to play the game.

I’ll have to stay close.

I’ll have to let the bond burn.

And I’ll have to face the fact that every time Cassian Thorn looks at me, I don’t just see a monster.

I see a man who’s as trapped as I am.

A knock at the door.

Not Kael this time.

The air shifts. The bond hums, louder now, warmer. The pain in my side dulls, replaced by a slow, insistent *thrum*.

I don’t turn.

“You’re not supposed to be in here either,” I say.

The door opens.

Footsteps. Slow. Deliberate. Cold air follows him in, frost blooming at his boots.

“You’re in my chambers,” Cassian says, voice like smoke. “I can go wherever I please.”

I turn.

He stands just inside the door, tall, silver-haired, storm-gray eyes locked on mine. He’s removed his gloves. His hands are bare. The thorned mark on his palm matches mine—black, curling, alive.

“And you,” he says, stepping closer, “are in mine.”

The bond flares.

Heat rolls through me, sudden and deep. My breath hitches. My skin tightens. The thorns on my arm *bloom*, spreading like ink beneath my skin.

He sees it. Of course he does.

A slow, knowing smile touches his lips.

“Still fighting it?” he asks, voice low. “How noble.”

“How dangerous,” I counter. “For you.”

He stops just out of reach. Just close enough that I can feel the pull of him, the heat of his magic, the way my body *leans* toward him, traitorous and undeniable.

“You think you can kill me,” he says. “Even now. Even bound.”

“I don’t *think*,” I say. “I *know*.”

He tilts his head. “And yet, here you are. In my bed. In my chambers. Breathing my air. Feeling my magic in your veins.” His gaze drops to my mouth. “Tasting my desire on your skin.”

My pulse jumps.

“It’s the bond,” I say. “Not you.”

“Liar.” He steps closer. The heat between us intensifies. The thorns on my arm *throb*. My breath comes faster. “You felt it before the bond. When I looked at you. When I said your name. You *wanted* me.”

“I wanted to kill you.”

“Same thing, isn’t it?” He smirks. “Passion. Rage. Fire. You’re not like the others, Birch. You don’t kneel. You don’t beg. You *burn*.”

“And you?” I snap. “What do you feel? Control? Power? Or just the thrill of breaking another witch?”

His eyes darken. “I feel *alive*.”

The word hits me like a slap.

“For the first time in centuries,” he says, voice rough, “I feel something real. Not duty. Not fear. Not the weight of a crown. Just… *this*.” He lifts his hand, the marked palm facing mine. “You. Me. Fire and thorn. Hate and hunger.”

My chest aches.

“You don’t get to make this about us,” I say. “This is about revenge. About justice.”

“And what if I told you,” he says, stepping so close our breaths mingle, “that I didn’t burn your coven?”

My breath stills.

“What if I told you,” he whispers, “that I was *trying* to save them?”

The bond *screams*.

Not in pain.

In *truth*.