Cover of The Grimoire's Sultry Stain

The Grimoire's Sultry Stain

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A young woman in a medieval fantasy world found a page ripped out of an ancient grimoire. It contains some spells. She decides to cast one of them, not being aware of what the spell actually does. She accidentally marks herself with a mark of lust and fertility as a result.

Chapter 1: The Oak's Secret

The sunlight in the clearing was old gold and honey-thick, cutting through the canopy in shafts that illuminated dancing motes of dust and pollen. Elara knelt in the moss, the torn page heavy in her hands. The parchment was brittle, the ink a faded brown that looked too much like dried blood. She’d found it last week, wedged deep in the hollow of the great oak whose bark seemed to whisper under her fingertips.

She couldn’t read the language. It was all sharp angles and slashing lines, nothing like the careful script in her master’s herbal compendiums. But she’d felt the pull of it, a low hum in her teeth whenever she touched the page.

Today, that hum had become a song she couldn’t ignore.

Her fingers, stained green from yesterday’s wort-leaf crushing, traced the central rune. It was colder than the surrounding paper. The air in the clearing changed, growing still and charged, like the moment before a lightning strike. The scent of damp earth and pennyroyal sharpened, edged with something metallic. Ozone.

Her heart hammered a reckless rhythm against her ribs. This was stupid. This was the kind of thing the old tales warned about in hushed tones by the fire. But the tales never sat in a dusty apprentice’s room, aching for a sliver of the world’s true map. She took a shaky breath, her voice a feather in the heavy air.

She whispered the first phrase.

The words felt wrong in her mouth, clumsy and guttural. They weren’t meant for a human tongue. The second phrase scraped her throat. The clearing darkened, the golden light leaching away as if swallowed. The runes on the oak’s trunk began to glow, a sickly, pulsing green that beat in time with her own quickening pulse.

Panic, cold and clean, finally cutting through her curiosity. She tried to stop, to drop the page, but her hands were locked. The final sequence of sounds tore from her lips unbidden.

Fire.

It erupted from the page and burned into her, a line of pure, white-hot agony just below her navel. She screamed, back arching, the sound swallowed by the now-deafening hum in the air. It was branding, cleaving, rewriting. It felt like it went on for years.

Then, silence.

The page crumbled to ash in her seized hands. The light returned to the clearing, ordinary and dappled. Birdsong tentatively resumed.

Elara collapsed forward onto her hands, gasping, strings of her wild auburn hair sticking to her sweaty forehead. She fumbled with the hem of her tunic, her fingers trembling so badly she could barely lift the linen.

There, on the pale skin of her lower abdomen, a mark bloomed. It was the size of her palm, intricate and alien, the colour of a freshly healed burn—a harsh, livid crimson. It didn’t hurt, not anymore. It just… was. And it was warm. A deep, internal pulse of heat that echoed the frantic rhythm of her heart.

She sat back on her heels, stunned. What had she done? A hysterical laugh bubbled up in her chest. She’d wanted knowledge. This didn’t feel like knowledge. It felt like a locked door had been slammed inside her, and she could feel something rattling the handle from the other side.

A twig snapped.

She yanked her tunic down and scrambled up, whirling around. A man stood at the edge of the clearing, his posture taut, one hand resting on the worn hilt of the sword at his hip.

He was a stormcloud of a man. Tall, broad-shouldered, wearing travel-stained leathers and a cloak that had seen better days. His hair was sun-bleached brown, tied back, but strands had escaped to frame a face that was all hard lines and weathered planes. A silvery scar bisected his jaw. His eyes, a sharp, assessing grey, scanned the clearing—the scattered ash, the still-faintly glowing runes on the tree, her own pale, frightened face—and fixed on her.

“That,” he said, his voice a gravelly rumble that fit his scarred face, “sounded like a world of trouble.”

Elara lifted her chin, trying to muster some semblance of defiance. “It’s a private clearing.”

“It was. Until you started shouting in a tongue that made my teeth ache.” He took a step forward, not threatening, but deliberate. His gaze was like a physical weight. “What did you summon?”

“Nothing. I didn’t summon anything.” The lie was weak, even to her own ears.

He nodded slowly, those storm-grey eyes missing nothing. “Right. And the air just tastes like a shattered forge out of sheer coincidence.” He sighed, a sound of profound weariness. “Let me guess. Found something old and shiny. Couldn’t leave it alone.”

Heat flushed her cheeks, a mix of shame and anger. The mark on her skin throbbed, a fresh wave of warmth spreading outwards. It was a confusing, distracting sensation. “Who are you to judge?”

“Kaelen. A man who gets paid to deal with the aftermath of choices like yours.” His hand hadn’t left his sword. “And whatever you just did… it’s like a bonfire on a hill. I felt it a half-mile off. Others will too. Others who aren’t just passing through.”

A cold dread seeped into her guts, colder than the mark was hot. “Others?”

“Things that eat pretty, reckless girls who play with fire they don’t understand.” His words were blunt, cruel in their simplicity. He was watching her, not the woods. Assessing her fear.

The mark pulsed again, stronger this time, a direct response to the intensity of his stare, to the rough texture of his voice. It was unnerving. It felt like a compass needle swinging towards true north. Towards him.

He frowned, a slight crease forming between his brows. He took another step closer, and Elara fought the instinct to step back. “What’s wrong with you?”

“Nothing.”

“You’re flushed. You’re shaking. And your eyes just went… wide.” His own eyes narrowed. “Did it get a piece of you? The spell.”

She said nothing, clutching her arms around herself.

“Show me.”

“No.”

“It wasn’t a request.” His tone left no room for argument. It was the voice of a man used to navigating bad situations and making quick choices. “If you’re marked, it changes everything. For you. For anyone near you.”

The truth of it pressed down on her. She was just a herbalist’s apprentice. She had no weapons, no real magic, just a head full of reckless want and a skin that now hummed with a secret. He had a sword and eyes that had seen too much. Slowly, hating every second, she lifted the edge of her tunic again just enough to reveal the livid, intricate brand.

Kaelen went very still. A muscle ticked in his jaw. He wasn’t looking at her with lust or curiosity. He looked like a man who’d just seen a death warrant.

“Damn it all,” he muttered, almost to himself. He finally took his hand off his sword hilt to rake it through his hair. “That’s a binding mark. An old one. I’ve only seen its like once, on a corpse in a bog.”

The word ‘corpse’ landed between them like a stone.

“What does it bind?” Her voice was small.

“Power. A promise. A life. Depends on the spell.” He finally looked from the mark to her face. “What were you trying to do?”

“I don’t know,” she admitted, the full weight of her stupidity crashing down. “I couldn’t read it. I just… wanted to hear the words.”

He let out a short, humourless laugh. “You lucky fool. It could have unmade you on the spot.” He stared at the mark a moment longer, then his gaze snapped back to the surrounding trees, alert. “We need to move. Now.”

“Move? I’m going home.” She took a step back towards the path to the village.

“You’re not,” he said, his voice flat. “That mark is a beacon. It’s quieter now, but it just flared when I approached you. It’s reactive. Whatever unfinished business that spell was, you’re part of it now. Going home leads whatever’s coming straight to your doorstep. To your master’s cottage. You want that?”

The image of gentle old Bennis, her teacher, facing some shadow drawn by her mistake, stole the breath from her lungs. She shook her head.

“Then you’re with me, for now,” Kaelen said, turning and moving toward the deeper, darker part of the forest with a stiff, practical stride. “I know a wainwright a day’s walk from here. He’s discreet. We can figure out what you’ve saddled yourself with.”

It wasn’t a request. It was a strategy. Elara stood rooted, caught between the familiar world of herb bundles and village gossip, and this scarred stranger walking away into the unknown.

The mark on her skin gave another distinct, aching throb. A pull.

She took one last look at the sun-dappled clearing, at the innocent-looking oak, and then she turned and followed Kaelen Thornwood into the dark of the woods, the ghost of the spell clinging to her like a second skin.

She took one last look at the sun-dappled clearing, at the innocent-looking oak, and then she turned and followed Kaelen Thornwood into the dark of the woods, the ghost of the spell clinging to her like a second skin.

He didn’t speak. His movements were silent, a practiced economy that made her own steps sound like a clatter of falling pots. Brambles caught at her skirts. The comforting smells of damp earth and pine turned darker, layered with rot and the iron-tang of a distant stream. The mark on her belly was a quiet ember, a persistent, low-grade warmth that seemed to sync with the rhythm of his footfalls ahead.

After an hour, her curiosity burned hotter than the fear.

“You said you’ve seen this mark before. On a corpse.” Her voice shattered the quiet, too loud.

Kaelen didn’t break stride. “I did.”

“What killed it?”

“It.”

“What’s ‘it’?”

He glanced back, his grey eyes flat. “Didn't stick around to ask. The body was drained. Grey. Like all the juice had been sucked out, but the skin was covered in those same pretty lines.” He pushed a low-hanging branch aside, holding it for her. The simple courtesy was at odds with his tone. “The point is, something is tethered to that mark. And it collects.”

A chill that had nothing to do with the shade traced her spine. “Collects?”

“Ownership.” He dropped the branch. “You invoked a contract you can’t read. Now you’re the property waiting to be claimed.”

They walked on. The woods grew denser, the light failing. Elara’s mind raced, a frantic counterpoint to the grim, steady certainty of his back. Property. The word was coarse, wrong. She was nobody’s property. She was Elara Voss, who knew the difference between wolfbane and monkshood, who could stitch a wound and set a bone. She was…

The ember in her skin flared. A spike of heat, sudden and deep. She stumbled, a gasp catching in her throat.

Kaelen stopped instantly, turning. “What?”

“It… pulsed.” She pressed a hand to her stomach, over her tunic. The warmth spread, a liquid ripple through her lower belly. It wasn't pain. It was something else, something that tightened her breath and made the space between her skin and her clothes feel acutely sensitive. She felt a flush climb her neck.

He was watching her, his head tilted. Reading her. The scar on his jaw stood out in the dim light.

“It’s reacting to something,” he murmured, his voice low. His eyes weren’t on her face anymore. They tracked down, to where her hand pressed against the hidden brand. The attention was clinical, dissecting. It should have felt violating. A part of her recoiled.

Another part, the part warmed by the mark, leaned in.

SHE FEELS DESIRE.

It was a shocking, unbidden tide. It had no focal point, no real object—just a raw, aching wave of want that radiated from the mark, warming her blood, shortening her breath. It was for the forgotten words, for the hidden knowledge, for the dangerous dark of the woods and the sharp angle of his shoulders in the gloom. It was for him, for his capable hands and his grim mouth, and it was terrifying in its intensity because it wasn't entirely her own. It felt borrowed, amplified, as if the spell had scraped her raw and every feeling now echoed in a cavern.

Her hazel eyes widened, locked on his. She saw the exact moment his assessment changed. The storm-grey eyes sharpened, then darkened with a understanding that was almost physical. He didn't move.

A twig snapped to their left.

The moment shattered. Kaelen moved like water over stone, shoving Elara behind him, his sword clearing its sheath with a soft, lethal whisper.

It unfolded from the shadow of a rotten log. It was the colour of fungus and weeping bark, all sinew and mismatched angles. It had too many joints in its limbs, and its head was a featureless knob save for a slit that might have been a mouth. It made no sound. It simply flowed toward them, a corruption of form.

“Don’t move,” Kaelen breathed.

He didn’t charge. He waited. Let it come.

The thing lunged, a blur of greyish motion. Kaelen’s sword wasn’t there to meet it; he sidestepped, and the blade came down in a short, brutal chop. It bit into the thing’s shoulder, but there was no spray of blood. Only a dry, splintering sound, like rotten wood. The thing twisted, impossibly fast, a taloned limb raking toward his ribs. He blocked with the cross-guard, metal shrieking against claw.

Elara watched, paralyzed. The heat in her mark was a furnace now, beating in time with the clash of violence. Each parry, each controlled pivot of his body, each grunt of effort sent another pulse through her. The desire had morphed, twisted with adrenaline and a dreadful, fascinated awe. He was beautiful like this. Efficient and deadly. The thought horrified her even as it bloomed, hot and undeniable, under her skin.

The creature recoiled, its focus snapping from Kaelen to her. Its faceless head tilted. It was drawn to the heat, to the mark.

Kaelen saw the shift. “Elara, run!”

But her feet were roots. The thing flowed past him, a river of wrongness aiming straight for her. She smelled it then—loam and death and a sweet, nauseating decay.

Kaelen wasn’t having it. He moved between them again, but this time he didn’t strike to wound. As the creature reached for her, he dropped his shoulder and drove forward, impaling it through its core. It made a sound then, a dry, rustling shriek. It thrashed, clawing at the blade. Kaelen held it, grim, muscles corded in his neck, forcing it back, back, until he pinned it against the trunk of a massive birch.

It dissolved. Not a death, but an unmaking. Its form seeped into the bark, staining it dark, until nothing was left but a bruised patch on the tree and Kaelen, breathing hard, his sword tip digging into the earth.

Silence rushed back in.

He turned to her. He was furious. “It zeroed in on you. On that… thing. It’s a lure.”

“I know,” she whispered, the words ash in her mouth.

He strode over, grabbed her arm. His grip was firm, not cruel, his hands calloused and warm. The contact shot through her like lightning, a direct line to the mark. She shuddered.

“Look at me,” he commanded.

She did. Her face was pale, her freckles stark. Her eyes were wide with fear and the lingering, shameful echo of that unwanted want.

“You feel it, don’t you? When it… activates.”

She couldn’t lie. Not with his hands on her, with the brand singing beneath his hold. She gave a tiny, desperate nod.

He released her arm as if burned. His jaw worked. “That’s going to get us killed. You have to control it.”

“How?” The word was a plea.

“I don’t know. But figure it out.” He wiped his blade on the moss and sheathed it. The practical motion was somehow more reassuring than any comfort. “We’re not stopping. We walk through the night. The wainwright’s is our only shot.”

He started walking again, a darker silhouette against the dark.

Elara stood for a second, trembling. She pressed her hand hard against the mark. It simmered, a banked fire after a blast of flame. She felt hollowed out, scraped clean by fear and that shocking, alien want.

From the bruised bark of the birch tree, a single, blackened leaf shuddered and fell.

She turned and followed Kaelen, the two of them swallowed by the hungry trees.

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