Chapter 9 : Platform Nine and Three-Quarters
King's Cross Station, London — September 1, 1991, 10:28 AM
The barrier between platforms nine and ten looked like every other stretch of brick in King's Cross — soot-stained, unremarkable, the kind of surface commuters leaned against while checking watches and cursing delays. Matt had read about it for twenty years across two lifetimes, and it still looked like a wall.
He adjusted the strap of his trunk. Whisper's carrier hung from one shoulder, the Kneazle inside radiating calm through their bond. Twig had retreated deep into Matt's hair, bark-fingers twisted around individual strands, broadcasting low-grade anxiety about the crush of Muggles and the rumble of trains and the general wrongness of being underground.
"All right," Matt murmured. "Here we go."
He walked at the wall. His body tensed — every survival instinct shouting that brick was solid, that physics demanded a broken nose — and then the air shimmered and he was through.
Platform Nine and Three-Quarters.
The Hogwarts Express sat gleaming on the tracks, scarlet paint catching the steam-filtered light. It was enormous — longer than he'd imagined, carriages stretching into the haze with the promise of a journey he'd waited five years to take. The platform swarmed with families: parents crouching to straighten robes, owls hooting in cages, trunks scraping flagstone, a hundred voices layered into the specific chaos of departure.
Matt stepped to one side and scanned the crowd.
There.
A woman with red hair and the bearing of a general marshalling troops was herding four boys toward the train. Her voice carried over the noise with the practiced projection of someone who'd been outnumbered by children for decades.
"Fred, put that DOWN. George, I saw that. Percy, stop polishing your badge and help your brother. Ron — RON — your rat is escaping again."
The Weasleys. Matt's gaze found Ron — gangly, red-haired, clutching a squirming something against his chest with the resigned expression of a boy who'd lost this particular battle many times before.
Matt filed the information and kept scanning.
Harry wasn't through yet.
He waited. Two minutes. Three. A cluster of Beauxbatons parents passed, speaking rapid French. A girl with enormous front teeth and wild brown hair marched past, trunk levitating behind her, already wearing her school robes and looking like she'd memorised the student handbook on the train from wherever she'd come from.
Hermione Granger.
Matt's pulse didn't change. His hands didn't shake. But something deep in the architecture of his planning shifted, settled, clicked into place. The girl who would become the brightest witch of her age walked past him at King's Cross, eleven years old, chin high, terrified behind the competence, and Matt had the staggering, vertiginous thought: I'm going to know her. She's going to matter.
Then the barrier shimmered again and Harry stumbled through, pushing a trolley with a wobbly wheel, Hedwig shrieking in her cage, looking exactly as overwhelmed as he had in Diagon Alley but grinning about it.
"Matt!" Harry abandoned the trolley mid-stride. "I thought I'd never find the platform — the Dursleys dropped me off at the wrong entrance on purpose and I had to — there was this woman, Mrs. Weasley, she showed me how to —"
"Breathe, Harry."
Harry breathed. His grin didn't fade.
"Ready?" Matt asked.
"Not even a little."
They loaded their trunks onto the train and claimed a compartment halfway down the second carriage — far enough from the prefects' car to avoid supervision, close enough to the food trolley to hear it coming. Matt stowed his trunk overhead and set Whisper's carrier on the seat. The Kneazle pressed her face against the mesh, amber eyes surveying their territory.
Harry took the window seat. Hedwig's cage went beside him, the owl sleeping with her head tucked under one wing.
The train lurched. The platform began to slide. Through the glass, Matt caught a last glimpse of Mrs. Weasley waving, of parents growing small, of the mundane world falling away.
Hogwarts. We're actually going to Hogwarts.
Five years of planning, and his hands were tingling.
---
Ron appeared eight minutes after departure.
The door slid open and a tall, red-haired boy stood in the gap, freckled face cycling through embarrassment and hope. "D'you mind? Everywhere else is full."
"Come in," Matt said, shifting Whisper's carrier to make room. "Plenty of space."
Ron dropped into the seat with the gratitude of someone who'd been walking the corridor for five minutes working up the nerve to ask. He was lanky — arms and legs that hadn't quite coordinated with each other yet — and wearing a jumper that had clearly been someone else's first. A rat poked its nose from his pocket.
Matt's Creature Sense pulsed.
[CREATURE DETECTED: RAT. TIER 0. NON-MAGICAL VARIANT. AGE: ANOMALOUS — LIFESPAN EXCEEDS SPECIES NORM BY FACTOR OF 8.7.]
[NOTE: BIOLOGICAL SIGNATURE INCONSISTENT. RECOMMEND CLOSER ANALYSIS.]
Scabbers. Peter Pettigrew.
The knowledge sat in Matt's chest like a swallowed stone. Twelve years as a rat. A traitor sleeping in a child's pocket. And Matt could do nothing about it — not yet, not without unravelling a chain of events that needed to play out for Sirius Black to be freed and the truth to emerge.
He smiled at Ron. "I'm Matt Summon. This is Harry."
Ron's gaze slid to Harry. To the forehead. To the scar.
"Blimey," Ron whispered. "Are you really — d'you really have the —"
"The scar?" Harry lifted his fringe with the weary patience of someone who'd been doing this since Diagon Alley. "Yeah."
"Wicked."
The ice broke the way it always did with Ron — through food. Matt had packed a bag of sweets from Honeydukes, purchased during his July Alley trip. He spread them across the seat between them like a peace offering. Ron's eyes went wide.
"Are those Chocolate Frogs? I collect the cards. Haven't got Agrippa yet."
"Take as many as you like."
Ron didn't need telling twice. He tore open a Frog, caught it mid-leap with a keeper's reflex, and bit off the head with cheerful savagery. Harry reached for a Cauldron Cake and turned it over in his hands, grinning.
Through the bond, Whisper radiated assessments. Harry: warm, familiar, safe. Ron: harmless, loud, trustworthy underneath the bluster. The rat: a blank space, as though the Kneazle's instinct was bumping against something it couldn't classify. Her tail flicked once, irritably.
She senses something wrong with Scabbers. Good.
"So you two know each other already?" Ron asked through a mouthful of chocolate.
"Matt's my best friend," Harry said, with the casual certainty of someone stating gravity's existence. "We met before all the wizard stuff."
Ron's ears went pink. "Oh. Right. That's — that's brilliant, actually."
Matt caught the flinch beneath the approval — the micro-expression of a boy who'd arrived hoping to make a friend and discovered the position was already filled. He leaned forward.
"Harry talks about Quidditch nonstop. I can't stand it. Please tell me you're into it."
Ron's face lit up. "The Cannons. I know they're rubbish, but —"
"They're not rubbish, they're unlucky. There's a difference."
Ron stared at Matt as though he'd just spoken the language of angels. "That's what I always say! Nobody believes me, but it's true — bad luck, injuries, that ref in the '88 semi-final —"
They were off. Ron launched into an analysis of Chudley Cannons strategy with the depth and passion of a military historian, Harry asked questions, Matt nodded in the right places, and by the time the countryside was green outside the windows, Ron had relaxed completely. He was part of the group. The architecture of the compartment had shifted from two-plus-one to three.
Matt palmed three duplicate Chocolate Frog cards — Morgana, Hengist of Woodward, and a Dumbledore he already owned — and passed them across during a lull.
"Got extras. Want them?"
Ron took the cards with reverent fingers. If he noticed the charity, he said nothing. Gratitude had no words when you were eleven and someone treated your collection like it mattered.
---
The compartment door slid open for the second time fifty minutes into the journey.
"Has anyone seen a toad? A boy named Neville's lost one."
The voice was clipped, precise, and faintly imperious — the voice of someone who'd been organising search parties since she could walk and saw no reason to stop now. Hermione Granger stood in the doorway, already in her Hogwarts robes, hair forming an impressive brown halo around a face set in determined authority.
"A toad?" Ron said. "Who brings a toad?"
"Don't be rude." Hermione's gaze swept the compartment — assessed, catalogued, dismissed Ron's chocolate-stained jumper and Harry's taped glasses in the space of a heartbeat — and landed on Whisper's carrier. Her eyes narrowed.
"That's not a normal cat."
"No," Matt agreed. "She's extraordinary."
"She looks like a Kneazle. Or at least part Kneazle. The ear tufts are distinctive, and the tail structure — I read about them in Fantastic Beasts —"
"Full Kneazle, actually. Purebred."
Hermione's mouth opened. Closed. Opened again. Matt watched the internal conflict play out in real time — the desire to ask seventeen follow-up questions warring with the urgency of the toad mission.
The toad won. Barely.
"Right. Well. The toad. His name's Trevor and the boy — Neville — is quite upset."
Matt stood. "I can help. I'm good with animals."
"How? We've already checked six compartments."
"Instinct." He stepped past her into the corridor. Creature Sense was already active — had been since he'd boarded. The train was a constellation of faint signatures: owls, cats, rats, toads, and one particularly agitated Puffskein three carriages down.
And there — weak, cold-blooded, the sluggish pulse of an amphibian — three compartments ahead, tucked behind a luggage rack.
[CREATURE DETECTED: TOAD. TIER 0. NON-MAGICAL. COMMON VARIANT.]
Matt walked. Hermione followed, matching his pace with brisk strides.
"How do you know where to go?"
"Family talent. The Summons have always been good with creatures."
"The Summons." She said it the way she said everything — processing, filing, cross-referencing. "I haven't read about that family. Is it in Hogwarts: A History?"
"Probably not. We've been out of the spotlight for a while."
"What kind of 'talent,' exactly? There's no documented spell for locating amphibians by walking confidently down a corridor."
Despite himself, Matt grinned. She was eleven years old and already dismantling his deflections with forensic precision. This was going to be a problem. A wonderful, relentless, absolutely inevitable problem.
"Think about it," he said. "If you figure it out, I'll be impressed."
Hermione's eyes narrowed to dangerous slits. "Is that a challenge?"
"Consider it extra credit."
They reached the luggage rack. Matt crouched, peered behind a trunk, and found Trevor wedged between a leather case and the carriage wall, croaking miserably.
"There you are." He reached in slowly — the toad flinched, then settled as Matt's fingers closed gently around its middle. A veterinarian's hold: firm enough to contain, soft enough not to stress. Trevor's throat pulsed once, twice, and went still.
"How did you —" Hermione started, then stopped. Her eyes tracked from the toad to Matt's face to the empty corridor behind them, calculating the probability of luck versus something she couldn't yet explain.
"Neville's this way?" Matt asked.
Hermione led him to a compartment four doors down. Inside, a round-faced boy with wide eyes sat hunched on the seat, misery radiating from every line of his body.
"Trevor!" Neville scrambled forward, taking the toad with the desperate relief of someone recovering a lifeline. "Oh, thank you — I keep losing him, he's always running off, Gran's going to —"
"Trevor's fine," Matt said. "Just exploring. Toads are curious — they don't leave because they want to; they leave because something interesting is happening somewhere else."
Neville looked at him with enormous, grateful eyes. "You — you really think so? That he doesn't hate me?"
"Definitely doesn't hate you." Matt smiled. "I'm Matt. This is Hermione."
"I'm Neville. Neville Longbottom."
Whisper, who had somehow escaped her carrier and followed Matt down the corridor, chose this moment to leap onto the seat beside Neville and press her head against his hand. The Kneazle's purr filled the compartment like a small engine.
Neville froze. "She's — she's touching me."
"She's an excellent judge of character." Matt caught Hermione watching with an expression he couldn't quite read — not suspicion, not yet, but the preliminary stages. The laying of foundation for questions that would come later. "You should be flattered."
Neville stroked Whisper's head with trembling fingers. The Kneazle's eyes closed. Her purr deepened.
"Want to come sit with us?" Matt asked. "We've got a compartment with Harry Potter, Ron Weasley, and about three kilos of chocolate."
"Harry — Harry Potter?"
"He's very normal," Matt said. "Likes Quidditch. Terrible at catching Chocolate Frogs."
Neville looked at Hermione. Hermione looked at Matt. Some calculation passed between them — the shared recognition that this boy with the toad-finding talent was offering something real.
"Come on," Hermione said to Neville, with a gentleness that surprised even her. "You can sit with us."
They walked back toward the compartment. Hermione matched Matt's stride, and he could feel her attention like a searchlight — bright, focused, already building the case file she'd carry for the next seven years.
"You didn't answer my question," she said. "About the 'family talent.'"
"No," Matt agreed. "I didn't."
"I'm going to figure it out."
"I know." He held the compartment door open for her. Inside, Harry was showing Ron Hedwig, and Ron was showing Harry Scabbers, and the countryside rushed past the window in a green blur heading north. "That's what makes it interesting."
Hermione gave him one last measuring look. Then she stepped through the door and introduced herself to Harry Potter with the same brisk authority she'd used to search for a toad — like the world was a problem she intended to solve, one introduction at a time.
Matt followed her in. The compartment was full now — five seats, five futures, and a Kneazle who'd claimed Neville's lap with zero intention of moving. Through the window, the hills of northern England gave way to moorland, and beyond that, somewhere invisible and ancient, a castle waited.
He reached into his pocket and offered Twig a woodlouse. The Bowtruckle took it without emerging from hiding — one bark-hand extending, snatching, retreating. The first creature Matt had bonded in this world, still riding in his pocket after four years, still demanding tribute.
Hermione was asking Ron about wizard chess. Neville was scratching Whisper's ears. Harry caught Matt's eye across the compartment and grinned — the full, unguarded grin of a boy who'd found his people.
Matt grinned back.
The Hogwarts Express carried them north, and the world narrowed to the size of a compartment full of future and the sound of five children discovering they belonged together.
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