Chapter Text
The snap of his quill was the final straw.
Harry let out an irritated huff, watching ink pool between his fingers. The cool, viscous texture was the only thing grounding him, a small anchor against the tide of exhaustion. He hadn't slept in two days.
He was so close to a breakthrough — he just needed more time. Time he frustratingly did not have.
For months, he'd been working on a solution. A way to stop being drained. Ever since Calix Fleamont Potter, the golden child and the heir his parents had always wanted was born, Harry had served one purpose: a magic bank for his brother's rare disease. His magic, siphoned away day after day, keeping Calix alive while Harry himself faded.
Calix was born with a fully formed magical core that is, inexplicably, empty, a vessel with no source. His body constantly seeks to fill that void by drawing magic from anyone nearby, but only a blood relative's magic provides a stable enough connection to sustain him.
The drain is involuntary and happens whether Harry is near Calix or not, thanks to the blood bond established at birth. Harry cannot escape it.
Harry muttered a cleaning charm, his magic flickered weakly in response. The ink oozing down his hands and shirt vanished in uneven patches, leaving behind smears and a lingering chill. He tried again, jaw tightening with effort, and the last of the stains finally disappeared—just as black spots bloomed across his vision.
He gripped the edge of his desk, knuckles white, waiting for the darkness to disappear.
It always came faster now. The moments between spells growing shorter, the recovery slower.
Harry woke the next morning with his skull pounding, each heartbeat a dull spike behind his eyes. He pushed himself through his routine anyway.
The shared bathroom was already humid with steam when he managed to get in. The shower helped—barely. He let the hot water beat against his shoulders until his legs stopped trembling, then forced himself through the motions: brush his teeth, style his hair, become presentable. His father would kill him if he wasn't the pristine image of composure.
It was ironic, really. James Potter, the man who once roamed these halls with permanently untamed hair and a mischievous glint in his eye, now demanded nothing less than perfection from his eldest son. But then again, ever since Lucius Malfoy, with the public's heartthrob and unnervingly polished assistant, Tom Marvolo Riddle, took the Wizengamot by storm seventeen years ago, the Marauders were never truly the same.
Harry made his way down the corridor
The walls of manner lined with portraits watched him pass. Ancestors whose names he knew but who never quite looked at him the same way they looked at Calix.
Their eyes followed, critical and cold, before turning back to their own conversations. Harry kept his gaze forward. He'd learned not to meet their eyes.
His reflection caught in the dark glass of a window. He almost didn't recognize himself anymore. The sharp cut of his jaw, the aristocratic slant of his cheekbones thrown into relief by the hollows beneath them.
Shadows bruised the skin under his eyes like smudged charcoal, lending him something ethereal, almost otherworldly.
His robes, once fitted, now draped across his frame like silk over carved marble became looser than they should be, but the effect was less gaunt than refined, as though he had been whittled down to something essential. Something that could cut
He looked like a ghost passing through his own home. But ghosts, he thought, had never looked this alive in their dying.
Calix's laughter echoed from behind the door at the end of the hall. Bright. Effortless. The sound of someone who had never wanted for anything.
Harry stopped outside. Pressed his palm flat against the wood. Breathed.
Then he opened the door.
Calix's room was drenched in morning light.
The enchanted ceiling mirrored the sky outside, a perfect September blue, clouds drifting lazily across the glass. The four-poster bed was draped in emerald silk, pillows piled high enough for Calix to lounge against them like a prince receiving court.
A breakfast tray sat untouched on the bedside table: fresh pastries, exotic fruits, a goblet of pumpkin juice that still held condensation.
The room smelled of Calix's expensive cologne, of the enchanted roses on his windowsill, of warmth and comfort and everything Harry's own room was not.
James Potter stood at the window, wand raised, adjusting the ceiling to Calix's murmured preference. "More clouds," Calix had said, and his father obliged.
Lily sat at the edge of the bed, smoothing her son's blankets with practiced hands. Her hair was pinned up, her Wizengamot robes already in place. She was checking the bonding basin beside the bed, it's obsidian, ancient, the runes along its rim glowing faintly silver.
Neither looked up when Harry entered.
"Took you long enough," Calix said without greeting. He didn't lift his head from the pillows. His eyes were closed, basking in the morning light like a cat. "The flow's been uneven all week. I've been feeling dreadful."
Harry didn't answer. He crossed to the chair beside the basin. The same chair, the same position, every morning for the past four years. The constant drain tugged at his core, a low, persistent ache, but the ritual was something else. The ritual pulled.
He lowered himself into the chair. His legs trembled slightly. He hoped no one noticed.
Lily's wand moved in a familiar arc. The runes on the basin flared brighter, silver light pulsing in rhythm with something deeper than his heartbeat. The stabilization charm. She performed it with the same clinical efficiency she might use to brew a potion. Precise, practiced, entirely detached.
"Your arm, Harry."
He extended his wand arm over the basin. The obsidian was cool against his wrist. He'd learned the hard way not to flinch when the charm took hold.
The constant drain was always there. He had learned to live with it, to carry it the way one carried a weight strapped to the chest. But the ritual was different.
The ritual reached into him and focused the flow, turning the scattered trickle of his magic into a clean, directed stream. Silver white light spiraled from his fingertips, pooling in the basin before rising like smoke toward Calix's outstretched hand.
Calix sighed, contented. The light touched his skin and sank into it, absorbed like water into parched earth. His color improved instantly, the faint flush of health deepening, his eyelids fluttering with pleasure. "That's better. I could barely function yesterday."
Harry focused on breathing. In. Out. The room seemed dimmer now, the morning light fading at the edges of his vision. His magic was already thin, the constant drain saw to that, but the ritual pulled what little remained with surgical precision.
He gripped the arm of his chair, knuckles white, and waited.
When it ended, the silence was deafening. The constant drain resumed its familiar ache, but Harry was emptier than before. The ritual had done its work. The flow was stable again. Calix was safe.
Harry pulled his arm back. The cut was already closed, it always closed, but his hand wouldn't stop trembling. He pressed it flat against his thigh to still it.
Calix stretched luxuriously, the energy visibly restored to him. He reached for his breakfast tray, inspecting a pastry before taking a bite. "That took longer than usual," he said around the food. "The bond must be getting weaker. You'll need to come twice a day now."
Harry's jaw tightened. "The bond doesn't need—"
"I'm not asking." Calix's voice sharpened.
He finally looked at Harry—really looked—and his lip curled. "You look interesting today. All sharp edges. Like a knife someone forgot to put away."
Across the room, James made a soft sound that might have been agreement or might have been nothing. He was still adjusting the ceiling.Lily was cleaning the basin, her back to Harry.
Calix's eyes gleamed. "Still working on your little project? All those scribbled notes and failed experiments?" He laughed, light and cruel. "Like you could ever fix anything. You can barely keep yourself together as it is. I mean just look at yourself. "
Harry's hands were fists now, hidden in the folds of his robes. The constant drain throbbed in his chest, a reminder of exactly how trapped he was.
"Calix," Lily said mildly, "be nice to your brother."
She didn't turn around.
Calix rolled his eyes, clearly unbothered. He bit into another pastry, already losing interest. "I'm just saying what everyone thinks."
Harry stood. His legs nearly gave out. He caught himself on the back of the chair, steadied, and took a step toward the door.
One step. Another. Another.
"Harry."
His mother's voice stopped him.
He turned. Lily had finally looked up from the basin. She was staring at him, really staring, for the first time in weeks. Her eyes traced his face, the sharp elegance of his features, the shadows beneath his eyes, the way his robes draped across a frame.
Something flickered in her expression. Concern. Guilt.
Recognition.
Her lips parted.Say something, Harry thought. His heart was beating too fast. Say anything.
"Mum," Calix called, his voice sweet as honey, "can you cut the crusts off my toast? You know I don't like the crusts."
The moment shattered.
Lily turned away. "Of course, sweetheart."
Harry stood in the doorway for a moment longer. Waiting. Hoping. But she didn't look back.
He stepped into the hallway and closed the door behind him.
The corridor was cold. It was always cold outside Calix's room.
Harry leaned against the wall, letting the cool wood press against his back. His legs wouldn't stop shaking. His hands were ice. The constant drain pulsed in his chest, slower now, gentler, as if the ritual had exhausted it as much as it had exhausted him.
From inside the room, he heard laughter. Calix's, bright and easy. Then his father's, warm and indulgent. Then his mother's soft, affectionate, relieved.
Calix is stable, Harry thought. That's all that matters.
He pushed off the wall and walked.
His room was at the end of the east wing, the smallest bedroom, the one no one else wanted. The door stuck when he pushed it open. He made a note to fix it, then remembered he didn't have the magic to spare for something so trivial.
The room was sparse. A bed. A desk. A window that faced the garden, not the sunrise. Piles of parchment covered every surface. Diagrams, formulas, failed calculations, desperate scribbles written in the dark when sleep wouldn't come. His research. His only hope.
He didn't make it to the bed.
His legs gave out somewhere in the middle of the floor. He slid down onto the cold wood, back against the desk, and sat there in the silence, breathing.
The trembling wouldn't stop. His fingers curled against the floorboards, trying to ground themselves in something solid. The drain was steady now, the ritual had seen to that, but the hollow ache where his magic used to be was wider than before.
He looked up.
His notes stared back at him. Pages and pages of research, cross-referenced theories, failed experiments. The solution was in there somewhere. He knew it was. He just needed more time. More magic. More something.
His hand reached for the nearest parchment, trembling fingers brushing against the edge.
I'm getting out of this, he thought. The words were a promise, sharp as glass. One way or another.
He pulled the parchment into his lap and began to read