Chapter Text
The rain against the windows of Number Twelve, Grimmauld Place did not sound like water; it sounded like handfuls of gravel being thrown viciously against the glass by a spiteful god.
Inside, the house smelled of wet rot, ancient upholstery, boiled cabbage from some forgotten decade, and the distinctive, sour-sweet tang of spilled baby formula. It was three o’clock in the morning, and Harry Potter was reasonably certain he was losing his mind. Not the slow, gentle slide into eccentricity that one might expect from a retired wizard, but a loud, crashing, violently unhinged break from reality.
"Please," Harry rasped, his voice sounding like it had been dragged through sandpaper and left to dry in the sun. He rocked his arms rhythmically, his shoulder joints popping in protest with every sway. "Teddy. Ed, mate. Please. The war is over. We won. You don’t have to keep screaming like Voldemort’s coming through the cat flap. There are no Death Eaters in the pantry. There are no Dementors under the sofa. It’s just old socks and misery. Please go to sleep."
Teddy Lupin did not care about the geopolitical state of the post-war wizarding world. He did not care that Kingsley Shacklebolt was currently restructuring the Ministry, or that the Daily Prophet had spent the last three weeks calling Harry the "Defiant Savior of the Age."
The three-month-old Metamorphmagus cared only about the massive, agonizing bubble of trapped air currently migrating through his tiny digestive tract. His dynamic tuft of hair—currently a stressed, radioactive shade of neon orange that practically glowed in the dark—shook with the sheer force of his lungs. His face was a deep, alarming purple, his fists clenched into furious little knots that punched the air with blind, directionless rage. The colic had been raging since midnight, and no amount of anti-reflux draughts, gentle belly rubs, or desperate, rhythmic bouncing had done a single thing to pacify him.
Harry’s eyes were bloodshot, rimmed with deep purple shadows that made him look like he had survived a fresh round of the Cruciatus Curse rather than three days of babysitting. He hadn't slept more than a consecutive forty-five minutes since Andromeda had come down with a sudden, debilitating case of dragon pox three days ago.
With the remaining Weasleys scattered or helping George pick up the pieces of his life in Diagon Alley, Harry had volunteered to take the baby. He had thought, in his infinite, seventeen-year-old arrogance, How hard can it be? I fought a basilisk. I died and came back. A baby is small. A baby has no dark magic.
He had never been more wrong in his entire life. A basilisk didn't spit up half-digested milk directly into your open mouth while you were trying to burp it. A basilisk didn't change its hair colour to match the exact shade of your growing migraine.
Stumbling over a stray dragon-hide boot that he had kicked off thirty-six hours ago, Harry migrated from the freezing nursery to the drawing room, hoping a change of scenery might shock the child into temporary silence. The house was drafty, the shadows long and ominous under the weak light of the gas lamps. The Black family home did not like infants. It liked dark artifacts, pureblood supremacy, and the heavy, suffocating weight of history. Every floorboard shrieked a complaint beneath Harry’s bare feet.
"Shh, shh, shh," Harry lied, his own voice sounding completely unconvincing. He paced the length of the drawing room, walking past the scorched tapestry where Sirius’s face used to be. "Look, Teddy. That’s your family tree. See all those horrible people? If you don't sleep, I'm going to tell old Walburga's portrait that you’re half-blood, and she’ll do the screaming for us. How about that?"
Teddy let out a particularly piercing, glass-shattering shriek that actually made the crystal chandelier above them ring in sympathy.
"Right. No negotiation with terrorists," Harry muttered.
He collapsed onto a dusty velvet armchair, letting his head fall back against the mahogany carving with a heavy thud. A cloud of ancient dust puffed up around his ears, making him sneeze. Teddy didn't even pause his screaming for the sneeze; he merely incorporated the sound into his rhythm, building up to a fresh, operatic crescendo.
To Harry’s left, a stack of books sat on a low side table. Earlier that afternoon, in a state of mindless, twitching boredom while Teddy slept for a blissful twenty minutes, Harry had used a combination of Alohomora and brute physical force with a letter opener to crack the locks on Sirius’s father’s restricted cabinets. He had been looking for anything useful—a cleaning charm that didn't leave a greasy residue, a mild sleeping draft recipe that wouldn't poison an infant, anything to make Grimmauld Place feel less like a tomb.
His eyes caught on a specific volume near the bottom of the pile. It was a slim, heavy book bound in a hide that was entirely too smooth to be cowhide or sheepskin. It had an uncomfortable, iridescent sheen under the dim candlelight, shifting from a dull charcoal to a deep, oily green, like the scales of an adder. The silver filigree along the spine didn't form letters or a title, but rather a series of interconnected, geometric paths that made Harry’s eyes hurt if he stared at them for too long. A labyrinth.
Holding Teddy awkwardly against his shoulder with his left arm—his biceps aching with a dull, burning fatigue—Harry reached out with his right hand and flipped the book open. The pages weren't made of ordinary parchment; they were thick, dark vellum that felt greasy to the touch. The text was written in an elegant, spidery script that seemed to crawl across the page like ink-soaked insects. It looked like an old pureblood fairy tale book, the kind designed to scare young wizards into obeying their governors before the Ministry regulated dark bedtime stories.
"Once upon a time," Harry read aloud, his voice dropping into a flat, exhausted drone. He hoped the rhythmic cadence of a story might finally trick Teddy's overstimulated brain into shutting down. "There was a kingdom ruled by a king who could weave the shadows into glass, and whose heart was a cold, glittering thing..."
Teddy let out another wail, his tiny legs kicking viciously against Harry’s ribs. His hair flared from radioactive orange to a violent, bruising crimson.
"The king lived in a city built of clockwork and spite, at the very center of a great maze," Harry continued, his voice growing louder to compete with the infant. He felt a strange, cold tingling in his fingertips where they touched the vellum, but he was too tired to care. "And whenever a child in the mortal world wept without cause, or whenever a guardian grew weary of the endless weight of their bloodline, the king would listen from his throne of black glass. He would wait for the words. The old words. The words that open the gate..."
Teddy’s crying hit a frequency that made Harry’s teeth ache. The baby’s head banged against Harry’s collarbone, hard enough to bruise. A warm trickle of drool and half-dissolved teething gel soaked through Harry’s already filthy t-shirt.
Harry stopped reading. The thin, fraying thread of his remaining sanity did not just snap; it dissolved into ash. He closed the book with a heavy, echoing thud that cut through the room like a pistol shot. He stared down at the screaming, red-faced infant in his arms, his chest heaving, his own eyes burning with tears of absolute, helpless frustration.
"I can't do this," Harry snapped, his voice trembling with a terrifying mixture of rage, exhaustion, and profound despair. He was seventeen. He had died in the Forbidden Forest. He had carried the weight of the whole bloody world on his shoulders, and now he was being defeated by a creature that weighed less than a sack of potatoes. "I swear to God, Teddy, I can't. I wish the Dark Lord would just come and take you away."
The words left his mouth before he could think. They were sharp, heavy, and drenched in the authentic, ugly malice of a person who had reached the absolute end of their tether.
For one terrible heartbeat, the only sound in the house was the rhythmic thrashing of the rain against the glass.
Then, the wind outside stopped dead.
It didn't fade; it was cut off as if a giant hand had slammed down over the chimney. The frantic rattling of the windowpanes ceased entirely, replaced by an eerie, suffocating silence so profound that Harry could hear the ticking of his own watch—a frantic, tiny heartbeat against his wrist.
The temperature in the drawing room plummeted. It didn't just grow chilly; it turned arctic within three seconds. Harry’s next breath plumed into a thick, white cloud of vapor before his face. The frost crept across the floorboards in rapid, silver ferns, crackling like breaking glass as it approached his bare feet.
Teddy stopped crying.
The silence from the infant was more terrifying than the screaming. The boy went entirely still, his small limbs going limp, his neon-orange hair shifting instantly from angry crimson to a muted, terrified, stark white. His wide, dark eyes stared up past Harry’s shoulder, fixed on the far corner of the room.
"Harry?" a voice whispered.
It didn't come from the hallway. It didn't come from the street outside. It came from the shadows beside the fireplace—shadows that were suddenly expanding, pooling across the floor like spilled ink, stretching up toward the ceiling like long, elegant fingers.
The single candle on the side table flickered once, its flame turning a brilliant, unearthly shade of emerald green. Then, with a soft pft, it died completely, plunging the room into a darkness so absolute that Harry couldn't even see his own hands.
"Who’s there?" Harry demanded, reaching instinctively for his wand with his right hand, his heart hammering against his ribs like a trapped bird. His fingers closed around the holly wood in his pocket, but before he could draw it, a sound filled the room.
It was the sound of shifting glass. The sound of a thousand crystal marbles rolling across a velvet floor.
And then, the glitter began.
It didn't fall from the ceiling like snow; it drifted up from the floor, tiny, floating specks of silver and green light that illuminated the room in a fractured, kaleidoscopic glow. The shadows in the corner detached themselves from the wall, swirling together into a tall, human silhouette.
The smell of sour milk and old dust vanished, instantly replaced by something that made Harry’s throat tighten: the scent of crushed mint, winter frost, and a sharp, prohibitively expensive cologne that he had only smelled in nightmares and dark memories.
"You called," the silhouette murmured.
The voice was low, rich, and dripping with an terrifyingly familiar, aristocratic cadence. It was a voice that belonged in a lecture hall, or a dark alley, or a dream.
The floating glitter converged, brightening for a single, blinding moment, and when Harry’s eyes adjusted, a man was standing in front of the cold fireplace.
He did not look like the snake-faced monster Harry had killed in the Great Hall three months ago. He looked twenty-one, perhaps twenty-two. His dark hair was perfectly styled, thick and glossy, falling across his forehead in a way that was artfully careless. He was tall, broad-shouldered, and dressed in clothing that looked like a cross between a Victorian aristocrat and a dark, predatory fairytale. He wore an immaculate black leather coat that brushed his ankles, lined with silver fur, and a high-collared tunic that emphasized the pale, flawless line of his throat.
But it was his eyes that made Harry freeze. They weren't the red slits of Voldemort, nor were they the polite, cautious dark brown of Tom Riddle the school prefect. They were a brilliant, burning electric blue, shifting with a faint, dangerous crimson spark at the center of the pupil.
Tom Riddle—the Goblin King, the Dark Lord, the nightmare in leather—smirked.
"You look terrible, Harry," Tom said softly, taking a step forward. The leather of his boots didn't squeak; it slid against the frosted floor with the sound of a hunting snake. "Motherhood clearly doesn't agree with you."
"Get out," Harry croaked, finally managing to pull his wand and pointing it directly at the center of Tom’s chest. His hand was shaking, not from fear, but from the sheer, trembling exhaustion that consumed his muscles. "Get out of my house. I don't know what kind of boggart or illusion this is, but I will blast you through the bloody wall."
Tom didn't look at the wand. He didn't even blink. He merely tilted his head, looking down at Teddy, who was still cradled in Harry’s left arm. Teddy wasn't crying; he was staring at Tom with wide, fascinated eyes, his hair beginning to turn a soft, glittering silver to match the lights in the room.
"It’s no illusion” Tom said, his voice dropping an octave, becoming something warm and dangerously intimate. "You made a wish. You used the old magic. The magic of the threshold, the magic of the unloved child and the desperate guardian. You said you wished the Dark Lord would take him away."
Tom extended a long, pale hand. His fingers were adorned with silver rings, one of which bore a heavy, green stone with a crest Harry knew all too well.
"So," Tom purred, "I have come."
"I didn't mean it!" Harry yelled, his voice cracking. He tried to step back, but his legs hit the velvet armchair, trapping him. "I was tired! I'm tired! Put the lights back on and get the hell out!"
"Ah, but the magic of the Labyrinth doesn't care if you meant it," Tom said. He moved with a speed that defied human reflexes. One moment he was five feet away; the next, he was directly in Harry’s space, the scent of him overwhelming, the cold radiating off his leather coat like an open freezer.
Before Harry could utter a hex, Tom raised his left hand. In his palm sat a perfect, clear crystal ball, about the size of an orange. It spun lazily above his skin, catching the green candlelight and reflecting images that weren't in the room—images of shifting stone walls, weeping willows, and distant, iron towers.
"Look at it, Harry," Tom whispered, his face inches from Harry’s. Harry could see the individual lashes around those terrifying blue eyes. "It’s a piece of your own mind. Beautiful, isn't it? Full of corners you don't want anyone to see."
With a flick of his wrist, Tom tossed the crystal ball into the air.
Harry’s eyes automatically followed the arc of the glass. In that split second of distraction, the weight in his left arm vanished.
"Teddy!" Harry gasped, his eyes snapping back down.
His arms were empty. The blanket was gone.
"Looking for this?"
Tom was standing back by the fireplace, the crystal ball gone. Instead, he was cradling Teddy Lupin against his broad chest with a casual, practiced ease that looked entirely wrong on a dark lord. Teddy wasn't screaming. In fact, the traitorous infant was currently reaching out with his tiny hands, trying to grab the silver buttons on Tom’s leather coat.
"Give him back," Harry said, his voice dropping into a low, lethal register. The magical energy in the room began to crackle, the air growing thick with the scent of ozone. Harry’s wand tip began to glow with a fierce, unstable red light. "I am warning you, Riddle. I killed you once. I will do it again."
Tom let out a low, musical laugh that echoed off the damp walls. "You didn't kill me, Harry. You merely broke a body. I am the King of the Shadows now. I am the lord of everything you reject. And this child..." He tapped Teddy’s silver-fuzzed head with a long finger. "...is mine by right of your own tongue."
"He’s a baby!"
"He is an inheritance," Tom corrected, his smirk widening into something sharp and predatory. "But I am not an unjust ruler, Harry. I like games. I especially like games where the stakes are your absolute ruin."
Tom raised his right hand again. The crystal ball returned, spinning faster now, filled with swirling grey smoke. He held it out toward Harry.
"Thirteen hours," Tom said, his blue eyes flashing with a wicked, delighted malice. "That is all you have. I am placing the child at the center of my Labyrinth, in the castle beyond the Goblin City. If you can navigate the maze and reach the throne before the clock strikes thirteen, you may have him back."
"And if I don't?" Harry demanded, his knuckles white around his wand.
"If you fail," Tom whispered, leaning forward, his voice a dark, seductive promise, "the child stays here. He becomes one of us. A creature of the shadows, a goblin of the dark, forgotten forever. And you... you will know that you gave him away because you were too tired to hold him."
"You son of a—"
"The clock is ticking, Harry," Tom interrupted. He spun the crystal ball toward Harry’s chest.
Harry reached out to bat it away, but the moment his fingers touched the glass, the crystal didn't shatter. It expanded. It dissolved into a blinding, liquid silver that rushed up his arms, engulfing his vision, his senses, his very breath.
The world tilted violently. The smell of Grimmauld Place vanished. The sound of the rain was replaced by the deep, resonant tolling of a massive, distant iron bell.
One.
Harry fell forward into the dark.
---
When Harry’s boots hit solid ground, the impact rattled his teeth.
He didn't fall onto the dusty carpet of the drawing room. He stumbled onto hard, damp earth, his hands flying out to catch himself against a wall of cold, rough stone. He gasped, sucking in air that was clean, sharp, and smelled faintly of wet stone and heather—entirely different from the stagnant grease of London.
He scrambled to his feet, his wand raised instantly, his chest heaving as he looked around.
The sky above him wasn't the black of a London night. It was a permanent, bruised twilight, a heavy expanse of deep plum and charcoal clouds that didn't seem to move. There was no sun, no moon, no stars—only a flat, ambient light that cast long, confusing shadows in every direction.
He was standing in a narrow stone trench. The walls on either side of him were ten feet high, built of massive, irregular blocks of dark obsidian that looked like they had been quarried from the floor of hell itself. The path beneath his feet was dirt, beaten hard by countless unseen feet.
Directly in front of him, the trench stretched out for twenty yards before splitting into a sharp left and right turn. Behind him, the wall was solid, seamless stone. There was no going back.
"Riddle!" Harry shouted, his voice echoing off the obsidian blocks. "Tom! You dramatic bastard! Where are you?"
The only response was a low, rattling caw from above.
Harry looked up. Sitting along the top edge of the stone wall were twelve massive crows. Their feathers weren't black; they were an oily, iridescent green that perfectly matched the binding of the book Harry had read from. Their eyes were bright, intelligent, and uncomfortably human. As Harry watched, the crow in the center opened its beak and let out a sound that sounded suspiciously like a dry, mocking chuckle.
"Brilliant. Crows with an attitude," Harry muttered. He rubbed his temples, where a sharp, throbbing headache was beginning to form.
He checked his wrist. His watch—the one Mrs. Weasley had given him for his seventeenth birthday—was still there, but the hands weren't moving normally. The second hand was spinning backward at an alarming speed, while the hour hand sat pointed squarely at a stylized, silver number thirteen that hadn't been on the face before.
"Thirteen hours," Harry whispered, Tom’s words echoing in his mind. If you fail, the child becomes one of us forever.
"Like hell he will," Harry growled.
He adjusted his glasses, gripped his wand tighter, and marched down the stone trench. He reached the first junction—the choice between left and right. Both paths looked identical. The stone was equally dark, the shadows equally long, the air equally cold.
"Right then," Harry said, choosing left out of sheer randomness. He took three steps down the left path, and the wall behind him instantly slid shut with a heavy, grinding roar, erasing the junction he had just come from.
"Oh, you're going to play like that, are you?" Harry said to the empty air.
A soft, melodic chime rang through the corridor. A few yards ahead, a small pool of silver light gathered on the ground, rising up to form the shape of a crystal ball—the same one Tom had used to trap him. Within the glass, Tom’s face appeared, looking thoroughly amused, his dark hair catching the ambient twilight.
"Welcome to the threshold, Harry," Tom’s voice echoed from the crystal, sounding as though he were standing right next to Harry’s ear. "I do hope you like the architecture. I designed it with you in mind. Simple, linear, and utterly stubborn. Do you like the left turn? Most people choose right. But then, you’ve always had an unfortunate tendency to lean toward the dark."
"Where is Teddy, Tom?" Harry asked, his voice flat. He walked up to the crystal ball, refusing to look intimidated.
"He’s in the nursery, of course," Tom purred, the image in the glass shifting to show a brief glimpse of a sprawling, gothic castle hall where Teddy was currently sitting on a pile of silk cushions, surrounded by three small, green-skinned creatures who were performing a terrible, juggling routine with copper cauldrons. Teddy was laughing, his hair a cheerful shade of sky blue.
"He looks much happier with me, don't you think?" Tom’s voice returned, his face reappearing in the crystal. "No sour milk. No crying. No exhausted teenaged godfathers wishing he would disappear. I am giving him an empire, Harry. What can you give him? A dusty room in a house full of ghosts?"
"I can give him a family that doesn't use him as a prop in a psychological ego trip," Harry snapped. He raised his boot and kicked the floating crystal ball with all his might.
The glass didn't shatter. It popped like a soap bubble, releasing a cloud of silver glitter that smelled of Tom’s cologne before vanishing into the damp air.
The twelve crows from the entrance suddenly took flight, soaring over the high stone walls and heading deeper into the maze, their loud, rhythmic caws sounding like a countdown.
Twelve.
Harry didn't wait for another message. He started to run.
---
The first hour of the Labyrinth was a lesson in spatial impossibility.
Harry had been running for what felt like miles, but every time he looked over his shoulder, the heavy obsidian blocks looked exactly the same. The path twisted, turned, doubled back, and occasionally tilted upward at an angle that should have made him slide backward, yet his boots remained glued to the dirt.
The architecture was monstrously familiar. As he turned a sharp corner, the stone walls briefly shifted, their rough textures smoothing out into the familiar, polished green tiles of the Ministry of Magic’s underground corridors. A few turns later, the walls became the damp, moss-covered brick of the Hogwarts dungeons, complete with empty torch brackets that occasionally spat out small sparks of green fire.
"He’s doing this on purpose," Harry muttered, his breath coming in short, ragged gasps. He wiped a layer of sweat and dirt from his forehead with the back of his sleeve. "It’s a highlight reel of everywhere I’ve almost died."
He stopped at a four-way intersection. In the center of the crossroads, a massive stone statue of Tom Riddle—as he had looked at sixteen, in his pristine Hogwarts school robes—stood on a pedestal. The statue wasn't holding a wand; it was holding a large, stone book, and its stone face was fixed in an expression of cold, intellectual superiority.
As Harry approached, the stone mouth of the statue ground open with the sound of breaking gravel.
"To proceed," the statue rumbled, its voice deep and robotic, "you must solve the equation of the three lines. If the length of the first path is equal to the square root of the soul’s weight, and the second path—"
"Oh, shut up," Harry said.
He didn't even pause to listen to the rest of the riddle. He raised his wand, pointed it at the statue’s arrogant stone face, and roared, "Reducto!"
The spell hit the statue dead center. The obsidian and marble exploded into a shower of grey dust and sharp fragments, the pedestal cracking in half. The stone head bounced twice on the dirt path before rolling into a ditch, its mouth still half-open in a silent, interrupted syllable.
Behind the ruined pedestal, a section of the stone wall shuddered and slid into the ground, revealing a completely new, unmapped pathway that led deeper into the gloom.
"Gryffindor points to me," Harry growled, stepping over the rubble and marching through the breach.
From somewhere high above the maze, a sound drifted down through the bruised sky. It wasn't an explosion or a magical roar; it was Tom’s laughter—clear, delighted, and utterly infuriating.
"Crude, Harry," Tom’s voice echoed through the canyon walls. "So very crude. You haven't changed a bit. Why use your mind when you can simply break things?"
"Because breaking things works!" Harry shouted back at the sky.
"We shall see," Tom murmured, the voice fading like mist. "We shall see how much you can break before you break yourself."
The path ahead began to slope downward, the hard-packed dirt giving way to damp, slippery stones that smelled of old water and moss. The air grew thicker, colder, and from somewhere in the distance, Harry heard the distinct, rhythmic sound of small, heavy iron tools striking stone.
The countdown in his head clicked again.
Eleven.