The sun was already high over the eastern ramparts of the castle, its pale golden rays slanting through the narrow stone window of the guest room when William finally opened his eyes.
He didn't just wake up; he felt as though his consciousness was being plugged back into a body that was no longer entirely human.
Across the small room, the second wooden bed was already neatly made. Arthur had clearly been up since dawn, likely locked inside Prince Roland's study or down at the outer barracks helping Chief Knight Carter Lannis purge whatever informants Duke Ryan still had hiding in the ranks.
Lying flat on his straw mattress, William stared up at the timber ceiling beams and slowly flexed his fingers.
Every single muscle fiber across his back, chest, and shoulders pulsed with an unusual, heavy density. It wasn't the stiff, burning ache of a normal gym workout back on Earth; it felt like the compact, coiled weight of cold-rolled steel.
When he sat up and stretched his arms overhead, his spine and shoulder joints popped in a loud, rapid sequence that sounded like the creaking hull of a wooden warship.
With his Strength sitting at an absurd 16, the very air in the room felt thinner, offering almost zero resistance when he moved. He had the distinct, slightly surreal impression that if he rolled out of bed too carelessly, his elbow would punch a crater straight through the castle's stone masonry.
Still, yesterday's madness hadn't come completely free.
Now that the combat adrenaline from the granary tunnel had finally drained out of his bloodstream, a deep mental exhaustion sat behind his eyes. Down on his right hand, the split skin across his knuckles throbbed beneath the linen wrap, and the shallow cleaver gash across his right shoulder pulled tight under the clean bandage the castle servants had tied for him before midnight.
— "Damn... I really went overboard down there," — William murmured, rubbing the bridge of his nose with his left hand to ward off the lingering drowsiness. Even his own voice sounded a full octave deeper in his ears, vibrating inside a ribcage that felt like an iron barrel.
Before his bare feet even touched the freezing flagstones beside the bed, he blinked twice and mentally called up the System interface.
He expected to see the dull, grayed-out [SHOP] icon with his measly twenty leftover credits sitting in the corner.
Instead, the translucent blue window flared to life with a brilliant, pulsing border of golden light that made him squint.
[SYSTEM NOTIFICATION: TIMELINE ANOMALY DETECTED]
Evaluation:The trajectory of the local timeline has been significantly altered through host intervention. Direct outcome: Salvation of key combat personnel (Greyhound, Brian, Erik, and Trevor) and complete preservation of strategic winter supplies (Central Granary).
[REWARD: +150 Credits]
[CURRENT BALANCE: 170 Credits]
[NEW SUB-FUNCTION UNLOCKED: BIOMETRIC STATUS INSPECTION]
For three seconds, William sat completely still on the edge of the mattress, his breath catching in his throat.
Then, a slow, predatory grin stretched across his face from ear to ear.
— "One hundred and seventy credits..." — William whispered, his heart giving a heavy, excited thud against his ribs. — "Now we're finally playing with a real bankroll!"
As his eyes scanned the golden text floating in the air, the true mechanics of the Dimensional System clicked together in his head like the tumblers of a vault.
All week long, Arthur had been treating their initial three hundred credits like a non-renewable trust fund. The strategist had been terrified of spending a single point on anything that didn't yield a long-term industrial return because neither of them knew how—or if—they would ever earn more.
Yet by refusing to sit on his hands while Duke Ryan's traitors butchered four patrolmen in the dark, William had just uncovered the System's primary gold mine.
Changing the course of the story wasn't a dangerous liability to be avoided; it was their main source of income. By saving a handful of "secondary characters" who would have otherwise died or bled out as tragic footnotes in the early chapters of Border Town's history, he had earned back more than half of the credits he had spent on his Strength in a single night.
Even better was the bottom line of the notification.
Focusing his thoughts on the newly unlocked [BIOMETRIC STATUS INSPECTION] sub-function, William suddenly understood the strange visual glitch he had experienced during the final seconds of the tunnel ambush.
Last night, right after he had taken the spearman's blade across his shoulder to shield nineteen-year-old Brian on the floor, his spiking adrenaline and newly boosted attributes had briefly forced open a secondary layer of the System. As his eyes had darted between the wounded guards, small, flickering text boxes had hovered just above their heads in the torchlight.
He remembered Brian's numbers clearly: Strength: 9 | Speed: 7 | Endurance: 10 | Agility: 8 | Intelligence: 5.
By the standards of a malnourished border town, an Endurance of 10 and a Strength of 9 meant the kid was near the physical peak of a trained mortal soldier—which explained why Brian was going to grow into one of Roland's core First Army knights in the future. Yet compared to William's current 16 Strength, the young patrolman had looked as fragile as a porcelain doll in that tunnel.
— "Wait until Art hears about this," — William chuckled softly, dismissing the blue window with a wave of his hand. — "Not only did I pay back more than half the budget, I just turned into a walking military scanner."
Before William could reach down to grab his boots, the temperature inside the sunlit bedroom dropped by ten degrees in a single heartbeat.
The fine hairs on his forearms stood straight up.
Five paces away, right beside the narrow stone window frame, the morning air rippled like heat haze rising off summer asphalt.
Without a single footstep or the slightest rustle of cloth, a slender figure in a dark, hooded cloak stepped out of the monochromatic veil of the Mist World, leaning her shoulder casually against the stone wall with the lethal, effortless grace of a snow leopard.
It was Nightingale.
She had pushed her dark hood back just enough for the morning sunlight to catch the loose waves of her silver-blonde hair. She didn't look as though she had slept a single hour since leaving Roland's office the night before, yet her pale skin was flawless, and her deep blue eyes were sharp enough to cut glass as they locked onto William sitting shirtless on the edge of his bed.
— "You sleep far too deeply for a man who claims to hold the keys to the future, Commander," — Nightingale said, her voice husky, quiet, and devoid of its usual teasing warmth.
She didn't draw the silver-plated dagger resting at her hip, nor did she take a step closer, yet the sheer weight of her focus filled the small stone room.
— "I waited until your strategist left for the inner yard," — she continued, folding her gloved arms across her chest. — "I came looking for the answers you avoided in the Prince's study yesterday. I want to know what Arthur meant in the hallway when he called the people of this world 'extras.' And I want to know why the two of you speak of Cara and my sisters in the Witch Cooperation Association as if their burial shrouds are already being woven."
William didn't reach for a shirt, and he didn't put up his cocky front.
Sitting on the edge of the mattress with the morning light falling across the fresh white bandage on his shoulder, he let out a long, slow sigh through his nose and ran a hand through his messy dark hair.
For a few seconds, he turned the problem over in his head. How do you explain the concept of a "supporting character" in a story to a woman who had spent her entire life bleeding in the mud for every breath she took—without breaking Arthur's ironclad rule about hiding their transmigration and the System?
Deciding that half-baked excuses wouldn't work on a woman whose magic literally detected lies through the vibrations of his pulse, William stood up from the bed.
His tall, heavily muscled frame cast a long shadow across the cold flagstones as he walked toward the window. He stopped three feet away from her—close enough to feel the sharp, wintry chill of the Mist World still clinging to the edges of her cloak, and close enough that she could easily put a blade through his throat if she didn't like his answer.
— "First, let's clear up that ugly word you heard in the corridor yesterday," — William said, his voice steady and stripped of all arrogance as he looked straight down into her blue eyes. — "Back in the land where Arthur and I studied those 'prophetic chronicles' from the Fjord Islands, we read the history of this continent from start to finish before we ever set foot in Graycastle."
Nightingale's eyes narrowed slightly, monitoring every heartbeat inside his chest.
— "When a strategist like Arthur reads a history book from a thousand miles away, the only names that stand out to him are the kings, the generals, and the major turning points," — William explained quietly. — "To a guy whose brain is wired for numbers and grand survival plans, a patrolman who dies in chapter one or a group of witches who vanish in a snowstorm look like minor background figures—'extras' on a page whose fates are already sealed."
William raised his bandaged right hand and tapped his own chest with two fingers.
— "That's why I blew up at him yesterday morning, Nightingale," — William said, a hard, unmistakable edge entering his tone. — "Because we aren't reading a book anymore. We're standing right here in the mud. To me, Brian isn't a footnote, Greyhound isn't a statistic, and your sisters in the Association sure as hell aren't expendable."
Inside the invisible frequencies of her Mist World, Nightingale watched the bio-rhythms of the man standing in front of her. There wasn't the slightest tremor of deception in his pulse—only the same fierce, blistering honesty she had witnessed when he threw his body in front of a poisoned spear ten hours ago.
— "And what about my sisters?" — Nightingale asked, her voice dropping lower as her fingers tightened against her sleeves. — "Yesterday in Roland's office, and again during your argument in the hall, you both spoke as if Cara leading our caravan north is a guaranteed slaughter. Cara is our mentor. She has kept hundreds of fugitive witches alive for years. Why are you so certain the Sacred Mountain is a grave?"
— "Because I'm not guessing, Veronica. And I'm not telling you a campfire ghost story to scare you into staying in Roland's castle," — William said, his voice turning as cold and serious as winter iron.
He took half a step closer, holding her gaze without blinking.
— "Beyond the Impassable Mountain Range, there is no warm paradise waiting for witches," — William said flatly. — "There is no secret valley of peace where the Demonic Bite magically disappears. If Cara marches your caravan through those northern passes, the only thing waiting for you on the other side is a race you can't even begin to imagine: the Demons."
Nightingale's pale face went completely still, the color draining from her cheeks.
— "Demons...?" — she whispered, a flicker of confusion mixing with the chill in her eyes. — "You mean the hybrid beasts? Or the tales the priests tell in the Church?"
— "I'm not talking about mutated wolves or six-legged turtles driven crazy by winter miasma, and I'm not talking about mythological devils from hell," — William replied, shaking his head. — "The real Demons are a living, breathing civilization. They have high-level intelligence, strict military hierarchies, cities forged in black stone, and magical technology that makes the Four Kingdoms look like toddlers playing with wooden sticks. They harbor a hatred for humanity that has burned for four hundred years. They are warriors, Nightingale. And right now, their vanguards are waking up in the far north."
For five full seconds, the only sound in the guest room was the cold morning wind whistling through the stone eaves outside.
Nightingale stared up at him, her mind struggling to process the sheer scale of what he was claiming.
— "A civilization... with minds and armies?" — she breathed, her voice barely audible. — "The Church of Hermes preaches that demons are mindless beasts born from sin... and they tell the commoners that witches are their servants."
— "The Church of Hermes has spent four centuries burying the truth of the previous war so the priests could hoard ancient relics and rule over ignorant kings," — William said bluntly. — "Think about it. When the Church itself collapsed under the weight of those northern armies four hundred years ago, the survivors fled south and built a religion on lies. And now, Cara is leading dozens of half-starved, untrained teenage girls straight toward the front door of that demonic empire in the middle of a sub-zero winter."
William's jaw tightened as he recalled the brutal chapters of the Witch Cooperation Association's winter exodus from the original story.
— "Cara is brave, and she fiercely loves her sisters, I won't deny that," — William continued, his voice softening with genuine grimness. — "But she is also blinded by dogma. She believes a piece of ancient rumor will save you all. When the blizzards seal the mountain passes next month, your caravan's food will run out in weeks. Half of your sisters will freeze to death in the dark or succumb to the Demonic Bite in the snowdrifts. The ones who reach the northern valleys will run straight into patrolling demonic vanguards. Almost all of them will die up there, Nightingale. Scroll and a handful of others might be lucky enough to crawl back out of the mountains alive by spring, but the cost in blood will break your Association forever."
The instant the name "Scroll" left William's lips, Nightingale froze as if she had been struck squarely across the chest by a God's Stone of Retaliation.
The shock was visceral and absolute.
Her relaxed posture vanished in a microsecond. Her pupils constricted to pinpricks, the air around her shoulders violently distorted with black-and-white ripples, and her right hand flashed beneath her cloak, gripping the hilt of her silver dagger with white-knuckled force.
She knew for an absolute fact that nobody in Graycastle—not Prince Roland, not Carter Lannis, and certainly not the Church's inquisitors—knew the name of the quiet witch who organized the Association's hidden camp and kept their written records.
— "How do you know that name?!" — Nightingale hissed, her voice vibrating with a lethal, desperate edge as the tip of her blade slid an inch out of its leather sheath. — "Scroll never leaves the shadows of the camp! I have never spoken her name to you, to Arthur, or to the Prince! Who are you, really?!"
William didn't take a single step backward.
Even with the deadliest assassin in the region coiled like a viper two feet from his bare chest, he kept his hands open at his sides, meeting her wide, terrified eyes with a calm that bordered on the supernatural.
— "I already told you, Veronica—those 'books' Arthur and I read don't leave much out," — William said softly, his voice steady and unthreatening. — "I don't just know Scroll. I know about Wendy, who acts like a gentle older sister to every frightened girl brought into your camp. I know about Leaf, who can control the forest vines. And I know that right now, every single one of them is marching into a freezing slaughterhouse because they don't know another sanctuary exists."
Nightingale's breathing came fast and shallow through her parted lips, her thumb trembling by a fraction of a millimeter against the guard of her dagger.
Her mind was a whirlwind, frantically trying to reconcile the impossibility of his knowledge with the terrifying logic of his warning. Naming "Veronica" yesterday could have been explained away by royal intelligence archives from the capital. Naming Scroll, Wendy, and Leaf—and describing their personalities alongside an apocalyptic secret buried behind the northern peaks—destroyed her last remaining skepticism.
This man wasn't a spy for King's City, and he wasn't just a clever scholar. He was a man staring directly at the threads of their fate before they had even been woven.
— "If I wanted to hurt your sisters, Nightingale, I wouldn't be standing here warning you," — William added quietly, taking half a step closer until the cold leather of her gloved hand was inches from his ribs. — "I spent my entire credit reserve yesterday and jumped into a dark hole last night so this town wouldn't starve before winter. Because if Border Town stands, then when Scroll and Wendy and the survivors stumble out of those freezing mountains, they will have a warm brick fortress, hot food, and a line of rifles waiting to protect them."
Slowly—agonizingly slowly—the lethal tension in Nightingale's shoulders began to uncoil.
With a soft metallic clink, she pushed the silver dagger back down into its sheath and let her hand drop to her side.
She looked up at William for a long, quiet moment, her blue eyes searching his bruised knuckles, the white bandage over his shoulder, and the unwavering certainty in his dark gaze.
— "You aren't going to tell me the whole truth about where you came from today, are you?" — Nightingale asked, her voice returning to a low, slightly breathless whisper as the edges of her cloak began to blur into the gray textures of the Mist.
Feeling the life-or-death pressure evaporate from the room, William let out a breath through his nose. Instantly, the heavy, solemn gravity vanished from his posture, replaced by his familiar, incorrigible smirk as he leaned one elbow casually against the stone window frame right above her head.
— "Tell you all my secrets? In one morning?" — William grinned, flashing his teeth with shameless confidence. — "No way, gorgeous. A guy has to keep some mystery alive. I'm saving the big revelations for after we get married."
Nightingale stopped dead in the middle of her fade.
Her form, which had already dissolved halfway into the monochrome veil of the Mist World, snapped back into solid, three-dimensional reality.
For a full two seconds, the feared assassin of the Witch Cooperation Association simply blinked up at him. And then, for the very first time since she had arrived in Border Town, her pale, guarded face took on a distinct, unmistakable flush of rose pink across her cheekbones.
She was a veteran killer who had slit the throats of corrupt lords and church inquisitors without her pulse ever rising above sixty, yet the sheer, playful audacity of the comment after a conversation about the end of the world caught her completely off guard.
She let out a short, nasal laugh—a sound that was half-exasperated and half-amused.
— "You really are a cheeky idiot, William," — Nightingale said, shaking her head as a new, distinctly playful trace warmed her velvety voice.
Stepping out of the window's shadow, she moved toward him with a fluid speed that would have made Carter Lannis flinch, stopping with her face just inches from his chest as she tilted her chin up to glare at his grin.
— "Keep making jokes like that, 'prophet,' and I might decide that your 'ancient books' would be much quieter without the organ you use to tell stories," — she warned lightly.
Then, raising one gloved hand, she gave a light, teasing push against his uninjured left shoulder—a brief touch that felt surprisingly warm despite the wintry aura of her magic—before stepping backward and dissolving completely into the shimmering gray mist.
Within a single heartbeat, the corner by the window was empty.
William stood alone in the sunlit stone room, the faint, crisp scent of autumn ozone and dried fish lingering in the air around him.
He let out a long, quiet laugh, looking down at the spot on his left shoulder where she had just pushed him before glancing toward the invisible blue interface waiting in his mind.
With one hundred and seventy System credits sitting in his pocket, the ability to read the combat parameters of every man in the territory, and the deadliest witch in Graycastle finally standing in his corner, William felt the heavy gears of this medieval world shifting beneath his boots.
Reach down to the floor, he grabbed his linen shirt and pulled it over his shoulders, wincing only slightly as the fabric brushed his bandage before strapping on his heavy leather belt.
Arthur was right about one thing: the industrial revolution of steam and gunpowder was going to reshape this continent.
Yet as William pulled open the heavy oak door of his quarters and strode out into the corridor toward the morning training yard, he knew they were no longer just trapped spectators trying to survive someone else's webnovel.
He was holding the pen now—and he was going to write a version of this winter where nobody got left behind.