Chapter 1: The Cyan Paradox of Platform Nine and Three Quarters
The moment Leonard Norton's fingertips touched the display case glass, the world shattered like a broken kaleidoscope.
The warm light of the 2025 London Harry Potter exhibition exploded on his retina, and the next second, the damp scent of steam and coal smoke filled his nostrils—he stood before the brick wall of Platform Nine and Three-Quarters, his left hand clutching the bronze amulet his mother had left him, its septagram pattern humming with a blue-green glow that perfectly overlapped with the hidden star map on the Hogwarts map from his memory.
"Stand still!"
A sharp female voice pierced his nerves like a wand tip.
Leonard spun around, seeing a brown-haired girl peeking out from behind "The Ministry of Magic's Guide to Prohibited magic" with wary eyes.
Her wand was pointed directly at the faintly glowing amulet at his waist, her knuckles white from gripping it tightly.
Just thirty seconds prior, in an instinctive attempt to pass through the brick wall before him, he had summoned his Wings of Wind, and the pale blue-green light had not yet fully faded from his sleeve.
"I... I'm here to catch the train." Leonard hastily stuffed the amulet into his robe pocket, but the girl approached him in quick strides, her pupils contracting sharply behind her glasses: "Wandless levitation, amulet resonance frequency 23Hz, and this septagram pattern—" She flipped through the manual, her fingertip tracing the yellowed parchment, "—it perfectly matches the ancient Wind Speaker's emblem recorded in the 1612 'Ministry of Magic's Records of Dangerous magic'."
The roar of the steam train approached from a distance, and Leonard caught a glimpse of the red-painted carriages billowing white smoke as they pulled into the platform.
The girl quickly pulled out a leather-bound notebook, her quill scratching across the pages: "September 1st, 11:03 AM, Gryffindor candidate Leonard Norton, wandless levitation sustained for 1.7 seconds, amulet energy fluctuation peak 0.9 Tesla—"
"My name is Hermione Granger." She suddenly looked up, the reflection on her glasses obscuring the probing look in her eyes.
"If you're a Dark Wizard in disguise, I'll notify the prefects immediately; if you're an out-of-control element resonater..." She paused, her voice softening slightly, "I can help you."
Leonard noticed the thin chain wrapped around her wrist, its pendant a miniature magnifying glass—identical to the one he'd seen in the portrait of Hermione Granger on Earth.
The amulet in his pocket grew warm, the ancient Teyvat script "Wind brings seeds" carved on its back resonating with his pulse.
"I'm a distant relative of Mrs. Granger." He pulled out his pre-prepared excuse.
"This amulet was left to me by my mother, she... she once said the Granger Family was connected to the Hogwarts Gargoyles."
Hermione's eyelashes fluttered fiercely.
She rummaged through her canvas bag for a parchment family tree, and the moment she unrolled it, Leonard's breath hitched—the green-robed Wizard in the portrait on the first page of the family tree had a septagram embroidered on his sleeve, identical to the amulet.
"In 1612, my ancestor, Eleanor Granger, participated in the carving of the Hogwarts Gargoyles." She whispered, "The records say those statues were made from 'rocks that resonate with the stars'."
The train whistle shrieked, and the platform erupted in a frenzy.
Hermione suddenly grabbed Leonard's wrist, pulling him towards the brick wall: "No time left, get on the train! But you must tell me, that blue-green light just now—"
"It was Wings of Wind." Leonard let her pull him as they ran, the amulet's blue-green glow forming an almost imperceptible pattern on their touching skin.
"magic that allows you to fly without a wand, it's like... like the wind itself is carrying you."
They leaped onto the train just before the doors closed, and Hermione's notebook was somehow open on her lap again, new handwriting pressing through the paper: "amulet material spectrum analysis: contains starsilver unique to Teyvat, 87% match with Gargoyle stone material.
Leonard Norton's pupils briefly turn blue-green when using his abilities, consistent with 'Anemo affinity' characteristics in the 'Elemental Creatures Compendium'—"
The compartment door was suddenly pushed open, and a red-haired boy carrying a pile of Chocolate Frogs tumbled in: "Have you seen my toad? Neville lost it again—" Before he finished speaking, a Chocolate Frog slid from his lap and rolled under the seat.
"I'll get it." Leonard focused, a faint blue-green light appearing on his sleeve.
A barely visible wisp of air subtly scooped up the Chocolate Frog, placing it steadily in the boy's palm.
The boy's eyes widened: "Merlin's beard! How did you do that? Without a wand?"
Hermione's quill almost pierced the paper.
She stared at the lingering blue-green trace on Leonard's sleeve and suddenly spoke: "Ron Weasley, this is Leonard Norton.
We were just discussing..." She paused, her gaze sweeping over the faintly visible amulet in his pocket, "Ancient magic theory."
The train entered a tunnel, and in the darkness, the amulet's septagram glowed like a small sun.
Leonard looked at Hermione's luminous eyes in the gloom and suddenly realized that this girl, who always recorded data in her notebook, might just be the key to unlocking the amulet's secret—just as she solved all mysteries in the original story.
"Do you remember," he suddenly began, "in Eleanor Granger's portrait in the family tree, did she have a star-shaped birthmark behind her ear?"
Hermione's pen paused, and her fingers unconsciously touched behind her own ear.
There, three faint golden star-shaped birthmarks were hidden beneath her curly hair, like scattered gold dust.
"How did you know?" Her voice wavered for the first time.
Leonard smiled, not answering.
The amulet's blue-green light, reflecting the fleeting starlight outside the window, cast two figures onto the compartment door, intertwining into Hogwarts's impending ancient mystery of elements and contracts.
And deep within the tunnel, the stone eyes of a certain Gargoyle suddenly turned, a fleeting blue-green light flashing in its eye sockets—the initial, and most secret, tremor of the Geo God and Anemo God resonating.