Chapter Text
The house smelled like rot and old magic.
Harry Potter stood in the narrow hallway, wand raised, breathing through his mouth to avoid the worst of it. Twenty-four years old and he'd seen enough dark wizards' homes to recognize the particular stench of prolonged curse work, something between copper and decay, like blood left too long in sunlight. His eyes tracked the peeling wallpaper, the scorch marks on the ceiling, the way the floorboards seemed to lean away from the walls as though the house itself was trying to escape.
Three-seventeen in the morning. He'd been awake for nineteen hours.
The raid was supposed to have been simple. Dawlish had the warrant, Proudfoot had the backup team, and Harry had the intelligence, three months of obsessive tracking, surveillance, cross-referencing Dark Arts purchases with known associates of the Mulciber family. Three months of sixteen-hour days, of falling asleep at his desk with case files stuck to his cheek, of ignoring Hermione's increasingly worried owls and Ron's invitations to Sunday dinner.
Three months that had led him here, to this rotting house on the outskirts of Manchester, alone.
The backup team was late. Dawlish had told him to wait.
Harry hadn't waited.
He moved deeper into the house, his wand-light cutting through the darkness in a tight, controlled beam. The obsessive part of his brain, the part that had kept him alive through the war and made him the youngest Auror in a century, catalogued everything. Ritual circle burned into the floor of the sitting room. Jars of something viscous and dark on the mantelpiece. A stack of books, their spines cracked and stained, titles in languages Harry didn't recognize but knew were old. Older than they should be.
His heart beat steady and slow. This was where he lived now, in these moments of perfect focus. Not in his empty flat in Grimmauld Place, where he slept four hours a night if he was lucky. Not in the Auror offices, where his colleagues had stopped inviting him for drinks after work. Not in the world of normal people with normal lives, people who had families and hobbies and reasons to go home at the end of the day.
Here. In the dark. Hunting.
The stairs creaked under his weight as he climbed to the second floor. His mind was already three steps ahead, mapping the layout, anticipating ambush points, calculating angles of attack. It was easier than thinking about the fact that he'd missed Ginny's birthday last week. Easier than remembering that he'd promised to be godfather to Ron and Hermione's daughter and had only seen her twice since she was born.
Easier than admitting that he had nothing waiting for him except the next case, and the next, and the next.
The hallway upstairs was narrower, darker. Four doors, all closed. Harry's instincts screamed at him, this was wrong, he should wait for backup, he should retreat and regroup, but his hand was already reaching for the first door handle.
Empty bedroom. Stripped mattress, broken mirror.
Second door. Bathroom. Rust-stained tub, cabinet hanging open.
Third door.
Harry's fingers brushed the handle and every nerve in his body ignited with warning. The wood was warm. Not just warm, hot, like something living pulsed behind it. He could feel magic thrumming through the door, old and angry and wrong.
He should wait.
He didn't wait.
The door exploded outward before he could even turn the handle.
Harry threw himself sideways, shield charm already forming, but the blast caught him anyway, a wave of concussive force that slammed him into the opposite wall hard enough to crack plaster. His vision whited out. His wand stayed in his hand through pure muscle memory, and he was firing back before his eyes could focus, before he could even see his target.
"Stupefy! Incarcerous! Confringo!"
The hallway erupted into chaos.
The dark wizard came through the doorway like a nightmare given form, tall and skeletal, robes dark as shadow. His face was wrong, features too sharp, eyes too bright, and when he spoke his voice seemed to come from everywhere at once.
"Auror Potter. How predictable."
Harry didn't waste breath on words. He rolled, fired a cutting curse that took a chunk out of the wall where the wizard's head had been, and came up in a crouch. His training took over. The endless drills, the muscle memory built from a war that had ended six years ago but still lived in his bones.
"Reducto!"
The wizard deflected it with a casual flick of his wand. "You come into my home. Alone. Reckless." A curse, black and writhing, shot toward Harry's chest.
Harry's shield held, barely. The dark magic splashed against it like acid, eating at the edges. He could feel the strain in his core, the way his magic stretched thin from too many late nights, too many cases, too much work and not enough rest.
He didn't care.
He fired back. A chain of spells, one after another, no pause between them. Stunner, blasting curse, cutting hex, binding charm. The hallway was too narrow for proper dueling, which meant it was too narrow for the dark wizard too. Harry pressed forward, aggressive, reckless, the way he always fought when he had nothing to lose.
The wizard's eyes widened. Just slightly. Just enough.
"Expulso!"
The explosion took out half the wall. Harry dove through the gap, into what looked like a study, and the wizard followed. They traded curses in the darkness, wand-light flashing like lightning, the air thick with ozone and burning magic.
Harry's world narrowed to this: the next spell, the next movement, the next breath. This was what he was good at. This was what he was for. Not relationships, not normalcy, not the quiet life everyone kept telling him he deserved.
This.
"Sectumsempra!"
The cutting curse caught the wizard across the shoulder and he screamed, a sound like tearing metal. Blood sprayed, black in the wand-light, and Harry felt a savage satisfaction that he knew he should be ashamed of but wasn't.
The wizard staggered back, and Harry saw his opening.
"Incarcerous!"
But the wizard was faster than he looked. His wand moved in a pattern Harry didn't recognize, something complex and ancient, and the air between them began to tear.
Harry felt it before he saw it. A wrongness in the fabric of magic itself, like reality was being pulled apart at the seams. The wizard's face was twisted with pain and rage and something else, something that might have been fear.
"If I fall, Auror Potter, you fall with me."
The spell he cast wasn't anything Harry had ever seen. It was dark magic, yes, but more than that. It was old magic, the kind that predated wands and Ministry regulations and everything Harry had been taught. The kind that required sacrifice.
The wizard's blood, still flowing from the Sectumsempra wound, began to glow.
Harry's instincts screamed at him to run, but there was nowhere to go. The spell was already forming, a vortex of dark light that seemed to pull at the edges of the world. He threw up every shield he knew, layered them one on top of another, but he could feel them crumbling like paper.
The wizard was laughing now, even as his face went gray. "You want to know what this spell does, Potter? It's called the Chronos Malediction. A curse that sends its target,"
Harry didn't let him finish. He fired a Killing Curse.
He'd sworn he'd never use it again. Not after the war. Not after Voldemort. But he was out of options and out of time and the vortex was growing, pulling at him, and he needed the wizard down.
The green light shot forward.
The wizard's spell completed at the exact same moment.
The two magics collided in the space between them, and the world broke.
Harry had been hit with dark curses before. He'd been Cruciated, hexed, cursed, poisoned. He'd died and come back. But this was different. This wasn't pain, it was wrongness, a fundamental violation of everything that should be. He felt his magic tear away from him, felt time itself grab hold of his body like a giant hand, felt the universe turn inside out.
The last thing he saw was the dark wizard's face, frozen in an expression of horror and triumph.
Then there was light, blinding and terrible, and a sensation of falling that went on forever.
And then there was nothing.
Harry woke up to rain.
Cold, steady, soaking through his robes and plastering his hair to his face. He was lying on cobblestones, his body one massive bruise, his magic a guttering candle flame in his chest. Every breath hurt. Every thought hurt.
He forced his eyes open.
An alley. Narrow, dark, smelling of garbage and wet stone. Buildings looming on either side, their windows dark. No streetlights, or rather, streetlights that were different, older, gas lamps instead of electric.
Harry tried to sit up and his vision swam. His wand was still in his hand, somehow. He clung to it like a lifeline as he dragged himself upright, his back against the alley wall, and tried to think through the pounding in his skull.
The fight. The dark wizard. The spell, the Chronos Malediction.
A curse that sends its target,
Harry's stomach dropped.
No. No, that wasn't possible. Time travel was regulated, controlled, limited to a few hours at most. The Time-Turners had all been destroyed in the Department of Mysteries. You couldn't just. You couldn't.
But even as he thought it, he knew. The magic he'd felt, the way reality had torn apart, the wrongness of it all. That hadn't been a simple curse. That had been something catastrophic.
He forced himself to his feet, swaying, and stumbled to the mouth of the alley. The street beyond was empty, slick with rain. The buildings were old, Victorian, maybe, or earlier. No cars. No electric lights. Just gas lamps and cobblestones and a silence that felt like the world holding its breath.
A newspaper lay in the gutter, disintegrating in the rain. Harry picked it up with shaking hands, squinting at the date printed at the top.
The Times. 15 June 1938.
The paper slipped from his fingers.
Fifty-seven years. The dark wizard's curse had thrown him back fifty-seven years.
Harry stood in the rain, alone in a London that wouldn't know his name for another three decades. His chest rose and fell normally. His hands had stopped shaking the moment he read the date, as if some part of him had been waiting for this, had already accepted it before his mind caught up. There was a clarity to it, a terrible simplicity: he was untethered now. No one was looking for him. No one would miss him. He was free.
He didn't think. He just stood there, letting the rain soak through him.
The words didn't mean anything. He turned them over in his head like objects he didn't recognize, trying to fit them into some shape that made sense. 1938. No money. No identification. No way home.
He stared at the wet cobblestones beneath his feet. At the gas lamps flickering in the darkness. At his own hands, which were shaking so badly he had to clench them into fists.
If this were real, the rain would stop. It didn't.
But it was. He could feel it in the wrongness of the air, in the way his magic roiled hot and angry in his chest, in the absolute certainty that had settled over him like a shroud. The dark wizard's curse had worked. Somehow, impossibly, it had worked.
Harry pulled his robes tighter around himself, tucked his wand into his sleeve, and began to walk. The rain continued to fall. The city continued around him.
He had survived worse. He could survive this, and more than that, he could change it. The thought crystallized as he turned down a narrower street, toward the lights of what looked like a proper district. He had no home, no identity, no future in this time.
Harry's pace quickened. The rain soaked through his robes, but he barely noticed. For the first time since he'd woken in that alley, his mind wasn't spinning with panic. It was working. Planning. Already reaching forward into a future he could actually shape.