The Long Wail of the Steam Whistle and the Platinum Provocation

September's London was shrouded in a thin layer of mist. Beneath the vaulted ceiling of King's Cross Station, the roar of steam engines mingled with the clamor of the crowd. Lynn pushed a brand-new trunk loaded with magic books and clothes—a gift from Madam Malkin's Robes for All Occasions in Diagon Alley—and stood before the seemingly impenetrable brick wall between Platforms Nine and Ten. The Star Stone pressed against his chest, radiating a steady warmth like a small, stable heart.

Taking a deep breath, he fixed his gaze on a certain spot on the wall and, without hesitation, accelerated his trolley straight through—

Whoosh!

The expected collision never came; it felt like passing through a cool curtain of water. The scene before him shifted instantly: a magnificent scarlet train, billowing thick white steam, rested quietly on the platform, its head bearing a gleaming brass sign reading "Hogwarts Express." The platform was packed with students in black robes and their families seeing them off. The cries of owls, the clatter of pet cages, parents' instructions, and the excited shouts of children wove together into a symphony unique to the magical world. The air was thick with the strange blend of coal smoke, pumpkin pasties, and the fur of some magical creature.

Lynn's eyes quickly scanned the crowd. A familiar mop of bushy brown hair appeared not far away, leaning out of an open compartment door. Hermione was on tiptoe, half her body sticking out, anxiously looking around. She had changed into a brand-new deep blue everyday robe—a going-away gift from Lynn—which made her small face look even paler. When her eyes caught sight of Lynn, they lit up instantly. She waved her arms vigorously, a brilliant smile blooming on her face like sunlight piercing London's mist.

"Lynn! Over here!" Her crisp voice cut through the noise.

Lynn pushed his trolley over quickly, a smile tugging at the corners of his mouth without his realizing it. Hermione hopped down the compartment steps and helped him lift the heavy trunk onto the luggage rack by the door. Her fingertips accidentally brushed against the back of his hand, and the Star Stone and Moon White Stone on their chests both sent a clear, resonant warmth through them.

"I was worried you wouldn't find the platform!" Hermione sighed in relief, her cheeks slightly flushed from the effort.

"The Star Stone showed me the way," Lynn said with a smile, his gaze falling on the wand holster she held in her arms, made from an old scarf. The tip of the Moonlight Grapevine Wand was carefully exposed. "Nice craftsmanship, Miss Granger."

Hermione's face turned even redder. She pursed her lips, half proud and half embarrassed. "I couldn't just leave it bare all the time. What about yours?"

Lynn took his Star-patterned Fir Wood wand from the inner pocket of his coat, still without any protection. "Looks like I need to learn from a certain resourceful classmate."

They exchanged a smile, the atmosphere relaxed and natural. Hermione led Lynn into the compartment she had claimed. It was empty, with only the view of the platform flowing past the window. Hermione's luggage was piled on the opposite seat, clearly she had saved the window seat for Lynn.

As soon as they sat down, Hermione pulled a bulging paper bag out of her small crossbody bag—enchanted with an Undetectable Extension Charm, much larger inside than it appeared—like a magician performing a trick. A tempting sweet aroma immediately filled the air.

"Mom baked blueberry muffins! And Honeydukes Chocolate Frogs!" She presented the bag proudly, pushing it onto the small table between them. "Try some!"

Lynn picked up a still-warm muffin. It was soft and sweet, with bursts of tart blueberry juice in his mouth. Hermione tore open a Chocolate Frog wrapper and, quick as a flash, caught the chocolate frog trying to hop out the window. She bit off a leg with satisfaction. "Got it this time!"

A smear of chocolate sauce clung to the corner of her mouth. Lynn naturally pulled out a tissue and handed it to her. Hermione took it, wiping her mouth, and her fingertips brushed against Lynn's again. The warmth at her chest returned. She quickly lowered her head, pretending to study the Dumbledore card that came with the Chocolate Frog, but the reddening tips of her ears gave her away.

The train let out a long whistle and slowly began to move. London's scenery started to recede, gradually replaced by open countryside. Just as Lynn and Hermione were sharing the muffins and discussing theories about the nature of magic from A History of Magic, the compartment door slid open.

A small, black-haired boy in round glasses poked his head in, looking hesitant and a bit awkward. A lightning-shaped scar was clearly visible on his forehead. His green eyes held curiosity and a faint trace of nervousness as he pushed a trunk that looked a bit worn.

"Excuse me... all the other compartments are full... Can I sit here?" The boy's voice was soft, tinged with uncertainty.

"Of course! Come on in!" Hermione immediately greeted him warmly, quickly elbowing Lynn. Lynn understood—this was Harry Potter.

Harry smiled gratefully and struggled to push his trunk inside. Lynn stood up to help him lift it onto the luggage rack.

"Thanks," Harry said, relieved, sitting down across from Hermione. His gaze curiously swept over Lynn and Hermione. "I'm Harry. Harry Potter."

"I'm Hermione Granger," Hermione introduced herself generously, then looked at Lynn. "This is Lynn Li."

"Hello, Harry," Lynn nodded in greeting, his demeanor calm and natural, without the excessive focus on the famous scar that others showed.

Harry seemed to relax a bit at this ordinary attitude. He had barely sat down when the compartment door was yanked open again. A freckle-faced, red-haired, lanky boy burst in energetically, clutching a bulging paper bag, one cheek stuffed full.

"Harry! Finally found you! Merlin's beard, I almost sat in the wrong compartment... uh?" The red-haired boy—Ron Weasley—stopped mid-chew when he saw two other people in the compartment, especially Hermione. A flash of embarrassment crossed his face, and he mumbled indistinctly, "Hi... I'm Ron. Ron Weasley."

"Hermione Granger, Lynn Li," Hermione introduced again.

Ron sat down next to Harry and pulled a crumpled brown paper package from his bag, revealing a few sandwiches that looked less than fresh. "Mum made corned beef sandwiches. Want some?" He offered them warmly to Harry, then hesitated, glancing at Lynn and Hermione.

"Thanks, we just had muffins," Lynn declined politely. Hermione shook her head with a polite smile.

Ron shrugged and started eating heartily. An awkward silence settled in. Harry and Ron exchanged whispers about their Diagon Alley experiences—Harry mentioned Hagrid—while Hermione pulled out A History of Magic to read. But Lynn noticed her occasionally sneaking glances at Harry, clearly curious about the legendary "Boy Who Lived." Lynn leaned against the window, feeling the steady warmth of the Star Stone, watching the scenery race by.

Suddenly, the compartment door slid open again, this time with obvious panic. A round-faced, somewhat forgetful-looking boy, on the verge of tears, asked anxiously, "Sorry! Has anyone seen my toad? His name's Trevor, and he's gone again!"

It was Neville Longbottom.

"No," Harry and Ron shook their heads. Hermione put down her book. "Don't worry, Mr. Longbottom. We can help you look. A summoning charm might work..."

Before she could finish, a grayish-green, wet, slimy thing landed with a wet plop from the gap above the luggage rack, without warning, smack in the middle of Hermione's open A History of Magic page!

"Ah!" Hermione shrieked, jerking backward, nearly bumping into Lynn. It was a fat toad—Trevor! It stared with dull, bulging eyes, let out a ribbit, and rubbed its hind legs across the precious parchment, leaving suspicious water stains.

"Trevor!" Neville cried out, a mix of joy and guilt.

Just as Hermione, furious at seeing her beloved new book ruined, turned red-faced and her fingers trembled toward her wand—as if she were about to cast a Cleaning Charm or outright banish the rude amphibian—Lynn moved.

Without using his wand, he shot out his hand, so fast it left only a blur. Before the faint glow at Hermione's wand tip had fully formed, before Neville's gasp had left his throat, Lynn's long fingers had already firmly grasped the cold, slippery, bumpy midsection of Trevor, lifting it off her book.

"Here, Mr. Longbottom," Lynn said, his voice calm as if he were picking up an ordinary object, handing the still-kicking Trevor to the stunned Neville. "Make sure to lock the cage next time." With his other hand, he casually picked up Hermione's defiled A History of Magic, his fingertips lightly brushing the page. No spell light, but the water stains and slime marks vanished as if erased by an invisible eraser, the page restored to pristine condition.

"Th... thank you!" Neville fumbled to catch Trevor, hugging him tightly, his face beet red as he apologized to Lynn and Hermione. "I'm sorry! Miss Granger! Really sorry! Thank you, Mr. Li!"

Hermione stared at the restored page, then at Lynn's calm profile. A clear warmth surged from the Moon White Stone on her chest, and the shock and anger from moments ago were instantly replaced by a strange sense of security. She quietly sighed in relief and waved at Neville. "Just be more careful next time."

Neville thanked them profusely and left, clutching Trevor. The compartment fell quiet again, but the atmosphere had shifted. Ron stared wide-eyed at Lynn, forgetting to chew his sandwich. "Cool! How did you do that? Without a wand?"

"Practice makes perfect," Lynn replied vaguely, handing the book back to Hermione. As she took it, their fingertips touched again, their eyes meeting for a brief moment before quickly looking away, an unspoken understanding flowing between them.

The train continued northward, the scenery outside taking on richer autumn hues. When the Trolley Witch's voice announcing snacks echoed down the corridor, Ron's eyes lit up. Harry generously bought a pile of Cauldron Cakes, Every Flavor Beans, and Chocolate Frogs to share. Hermione initially demurred, taking only a single Every Flavor Bean, but when Lynn handed her a Fizzing Whizzbee, she couldn't resist accepting it. As her tongue tasted the tingly, sweet electric fizz, her eyes narrowed in delight.

Just as Ron got his head trapped in a blue bellflower-colored bubble he'd blown, making Harry laugh out loud and even Hermione crack a smile, the compartment door slid open for the third time. This time, the movement carried a deliberate arrogance.

A boy with pale blond hair and a sharp, pale face appeared in the doorway. He wore a brand-new, immaculately pressed black robe, flanked by two hulking, mountain-like boys—Crabbe and Goyle—who completely blocked the corridor light.

Draco Malfoy's gray-blue eyes swept slowly, appraisingly, over the four people in the compartment. His gaze lingered for a moment on Harry's scar, and a smirk curled at the corner of his mouth.

"The whole train's been saying Harry Potter's in this compartment," he drawled, his voice deliberately elongated. "Looks like it's true. I'm Malfoy. Draco Malfoy." He extended his hand, aimed directly at Harry.

Ron let out a very soft, mocking snort. Harry hesitated, not immediately taking the hand.

Draco's hand hung in the air, his smirk faltering. His gray-blue eyes slid past Harry to Ron, undisguised contempt in his gaze. "Red hair, hand-me-down robes—don't need to ask who you are. The Weasleys always have a brood of kids, right down to wearing their brothers' old robes, don't they?" Ron's face flushed crimson.

Draco's gaze shifted to Hermione, scrutinizing her new deep blue robes and the thick books clutched in her arms with a critical eye. A light snort escaped his nose. "And you, Granger? Mud—oh, sorry, I mean, Muggle-born? Starting to bury your nose in books this early? How... diligent." The sarcasm in his tone was undisguised.

Hermione's small face tightened, her fingers gripping her books so hard her knuckles went white. Lynn clearly felt the girl beside him stiffen instantly, along with a faint tremor from the Moon White Stone at her chest, pulsing with anger.

Draco finally turned his attention to Lynn, who had been quietly sitting by the window all along. When he saw Lynn's Eastern features and composed demeanor, a flicker of barely perceptible surprise and even more scrutiny passed through his eyes, as if assessing the other's identity and standing. "As for you... Lynn Li?" He had clearly caught the earlier introduction, but his tone carried a condescending curiosity. "A... rather uncommon name. What does your family do?"

The air in the compartment seemed to freeze. Harry and Ron both watched Lynn nervously. Hermione glanced at him with concern, only to find his expression unchanged—still that calm, deep-pool stillness. He didn't even stand up, merely lifting his eyelids slightly, his profound black eyes meeting Draco's provocative gaze with unruffled composure.

"Family?" Lynn's voice wasn't loud, but it cut clearly through the rumble of the wheels, carrying a strange penetrating quality. His hand, resting under the small table, idly brushed the cool surface of his Star-patterned Fir Wood wand with his fingertips. "My family... is probably at the End of the Star Trail." His tone was as flat as if he were stating the weather, his gaze gliding past Draco's frozen face to the rapidly receding mountains outside the window, dyed gold and crimson by the setting sun, as if truly gazing at some distant, unreachable horizon. "Hogwarts is where I belong."

This answer completely caught Draco off guard—neither arrogant boasting nor humble retreat, but carrying an elusive detachment and... a sense of mystery. Draco's carefully prepared probing, based on family and bloodline, felt like a punch landing on cotton, leaving him momentarily at a loss for words. Behind him, Crabbe and Goyle exchanged blank looks, utterly confused.

"Woo—!"

Just then, a longer, louder whistle than before tore through the brief standoff. The train began to slow noticeably.

"We're here!" Harry exclaimed in relief, pointing out the window.

Everyone's attention was instantly drawn outside.

Beneath the twilight sky, on the far shore of the shimmering Black Lake, a towering castle rose abruptly. Countless turrets and spires pierced the deep purple night, while thousands of windows glowed with warm, bright golden light, like a brilliant Milky Way spilled onto the earth, reflected in the ink-dark lake—magnificent, mysterious, breathtaking.

Hogwarts was right before them.

Draco Malfoy's unfinished provocation seemed utterly insignificant before this awe-inspiring sight. He cast one last glance at the four occupants of the compartment, lingering especially on Lynn, who remained as still as water, then let out a cold snort and turned to leave with his two followers, his blond hair disappearing into the dim corridor.

"Finally here!" Ron exclaimed excitedly, pressing against the window. Harry's green eyes were wide with wonder.

Hermione quietly let out a sigh of relief, her tense body relaxing. She instinctively looked at Lynn beside her. Lynn was just withdrawing his gaze from the castle, and their eyes met briefly in the air. The Star Stone and Moon White Stone simultaneously pulsed with a gentle, steady warmth, as if resonating in silent harmony.

The journey's end was also the true beginning of the magical journey. The castle's lights, in the darkness, cast a silent summons toward them.