The heavy oak doors of the Headmistress's office clicked shut behind James with a solid, echoing thud.
Minerva McGonagall sat behind her desk, her expression an unreadable mask of hard-pressed stone. The notes James had brought from the Department of Mysteries—and his breathless account of the frozen grandfather clock in the West Tower—lay spread out before her like a crime scene.
"You are certain it was her?" McGonagall asked, her voice dangerously quiet. "The entity from the Godric's Hollow reports?"
"Positive, Professor," James said, running a hand through his perpetually untidy hair. He was pacing the length of the office, his Auror robes swishing with every turn. "She called me by name. And she left a silver hair that dissolved into mist before it hit the floor. The wards around the castle aren't just stretching, Professor—they're leaking."
McGonagall pinched the bridge of her nose, letting out a long, weary sigh that seemed to age her by a decade. "The temporal anchors we placed at the start of term are holding, but barely. The castle's architecture is reacting to the pressure. If the Time Devil is actively manifesting inside the grounds, we are past the point of preventative measures."
"What do we do?" James stopped pacing, leaning forward over her desk. "We can't just wait for her to make a move on Nova. We need to lock down the Hufflepuff dorms, pull the kids out—"
"And cause a panic that will tear the remaining structural integrity of this castle to shreds?" McGonagall interrupted sharply. "Fear is what feeds these anomalies, Mr. Potter. If the entire school panics, the temporal fabric will snap entirely. We stay vigilant. We protect her from the inside."
James jaw tightened, but he nodded. He knew she was right, even if every protective instinct in his gut screamed to grab his sister, his cousins, and Nova and run.
The Library at Twilight
Down in the library, the sun was casting long, distorted shadows across rows of towering bookstacks. Madam Pince had left early, complaining of a headache caused by books that kept rearranging themselves alphabetically by future authors rather than past ones.
Rose slammed a heavy tome shut, kicking up a cloud of dust that made Albus cough.
"Nothing," Rose muttered, pinching the bridge of her nose the exact same way McGonagall did. "I've checked three centuries of temporal anomalies, structural glitching, and psychic residue. Nothing explains why the grandfather clock in the West Tower is stuck at 11:17 every single night."
Albus leaned back in his chair, staring up at the high arched windows where the evening sky was shifting into an unnatural, bruised violet hue. "Maybe we're looking at the wrong thing, Rose. It's not about the clock. It's about what happens at the clock."
Scorpius, who had been quietly cross-referencing a stack of old Defense Against the Dark Arts scrolls, cleared his throat. "Actually... I found something interesting. Look at this."
He slid a piece of parchment across the table. Scrawled in the margin of a restricted-section register from twenty years ago was a single sentence: When the gears skip and the silver falls, the door that never existed opens in the hall.
Rose frowned. "What hall?"
"That's the problem," Scorpius said grimly. "The page is ripped right after that line."
Before either of them could reply, a soft, chilling chime echoed through the library.
It wasn't the regular clock tower. It sounded metallic, hollow, and terribly close—like a tiny grandfather clock ticking right inside their own skulls.
Tick. Tick. Tick.
Albus stood up so fast his chair screeched against the stone floor. "Did you hear that?"
Rose was already pulling her wand out, her eyes darting toward the dark, shadowy corner where the Restricted Section began. "Wands out."
Shadows in the Yellow and Black
Meanwhile, on the ground floor, Nova was walking back to the Hufflepuff common room alone. Lily and Hugo had promised to meet her by the portrait of the Fat Friar after their impromptu meeting with Roxanne, but they were running late.
The corridors felt unusually cold. Nova wrapped Ginny's red knitted phoenix jumper tighter around herself, her small fingers brushing against the loop knot charm tucked safely in her pocket. It felt warm—comfortingly so—pulsing against her leg like a tiny heartbeat.
Clack. Clack. Clack.
Nova froze. She turned around. The stone corridor behind her was empty, lit only by the sputtering amber flames of wall sconces. But as she watched, the flames didn't just flicker—they turned a brilliant, icy silver.
A shadow detached itself from a pillar twenty feet away.
It stretched, twisting unnaturally against the stone walls, before resolving into the shape of a girl. Golden-brown hair cascading like liquid copper. Eyes that gleamed with the cold, unfeeling light of a winter moon.
Nova's breath hitched. She wanted to run, but her feet felt glued to the floor. The silver-eyed girl didn't rush. She walked forward with a haunting, rhythmic grace, her bare feet making no sound at all against the ancient stones.
"Hello, little spark," a voice whispered, echoing from everywhere and nowhere at once. "You've been very hard to reach."
Nova backed up until her spine hit the cold stone wall. Her hand plunged into her pocket, gripping the knot charm so hard her knuckles turned white.
"Stay away," Nova whispered, her voice trembling, though a stubborn spark of ancient fire flared behind her blue eyes. "I know who you are. You're the Time Devil."
The girl tilted her head, a chillingly sweet smile touching her lips. "I am not a devil, child. I am simply... a correction. And you are a thread that was never supposed to be woven."
She raised a pale hand, and the air around her began to distort, fracturing like thin ice over a deep lake. Through the cracks, Nova caught terrifying flashes of a future that hadn't happened—a world where the castle was silent, empty, and completely unmade.
"Let's see how long your little anchors hold," the entity whispered, stepping closer.
Before Nova could raise her wand, a streak of bright red light blasted down the corridor, shattering the silver illusion and throwing a wall of protective fire between them.
"Get away from her!"
James came charging around the corner, his Auror badge gleaming, wand raised and blazing with fierce, protective magic. Behind him, boots echoed down the stone hall as McGonagall, Teddy, and a squad of Aurors converged on the corridor.
The silver-eyed girl didn't look scared. She merely smiled, fading back into the shimmering folds of the fractured air like mist touched by the morning sun.
"She's here," James panted, dropping down to his knees beside Nova and pulling her tightly into a trembling hug. "Nova, are you okay?"
Nova buried her face in his shoulder, gripping his Auror robes tightly. The knot charm in her pocket slowly stopped glowing, returning to a normal, quiet warmth.
"I'm okay," she whispered, looking back at the empty, shivering stone wall. "But she knows where I am."
James looked up over her head, locking eyes with McGonagall and Teddy as the cold wind of the temporal anomaly howled through the castle.
"Lock down the school," James said grimly. "The war for time has officially crossed the threshold."