Morning arrived the way it always did.

  Grey sky.

  Cold air.

  Students filling the school corridors with the usual noise of conversations, footsteps, lockers opening and closing.

  Routine.

  Predictable.

  Aerinox Vale walked through it quietly.

  No one greeted her.

  No one expected her to respond.

  She moved through the hallway like part of the background—noticed, but never acknowledged.

  Her shoes tapped softly against the floor.

  One step.

  Then another.

  Everything looked normal.

  But the feeling from yesterday hadn’t disappeared.

  It lingered.

  Like something unfinished.

  Like a question that had been asked but never answered.

  She reached her classroom and took her seat in the third row.

  The same desk.

  The same view of the chalkboard.

  The same humming fluorescent lights.

  Students were already talking.

  Two boys near the window were arguing about something.

  “You’re lying.”

  “I’m not lying, bro. I swear.”

  “You expect me to believe the road looked longer than usual?”

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  “I’m telling you, man. I walked past the same shop twice.”

  “That’s because you were distracted.”

  “Maybe.”

  They laughed.

  Conversation ended there.

  Another group nearby talked about something else.

  A girl frowned while scrolling through her phone.

  “My alarm went off three times this morning.”

  “That’s normal.”

  “No. I mean the time didn’t change.”

  “What?”

  “It stayed at 6:12 for like… a minute.”

  “That’s impossible.”

  “Maybe your phone froze.”

  “Yeah… maybe.”

  They shrugged it off.

  Teenagers rarely stayed serious about strange things for long.

  Normal life was easier.

  Across the classroom, Chloe leaned back in her chair.

  Confident posture.

  Perfectly styled hair.

  People naturally gathered around her.

  Kelvin stood nearby, resting one hand on her desk while speaking to a few others.

  He laughed at something one of his friends said.

  The group felt loud.

  Alive.

  Important.

  Everything Aerinox wasn’t.

  Chloe rolled her eyes slightly.

  “People are acting weird today.”

  Kelvin smirked.

  “You mean more weird than usual?”

  A few students laughed.

  But Chloe’s smile didn’t fully return.

  For a moment, she glanced toward the hallway outside the classroom.

  Something about it felt… off.

  Like when a room suddenly becomes quiet and you can’t explain why.

  The feeling vanished quickly.

  She shook her head.

  Probably nothing.

  Meanwhile, Aerinox sat silently, writing in her notebook.

  Lines of neat handwriting filled the page.

  But her attention wasn’t on the words.

  It was on the feeling.

  Something had changed.

  The air felt heavier.

  Not physically.

  Something else.

  She paused.

  The pen hovered above the page.

  Then—

  A distant sound echoed through the hallway.

  Soft.

  Almost like a door closing somewhere far away.

  A few students glanced up.

  But no one reacted strongly.

  School buildings were always full of random noises.

  Pipes.

  Doors.

  Footsteps.

  Normal.

  Except this sound felt different.

  Aerinox turned her head slightly toward the corridor.

  Her eyes drifted further down the hallway.

  Toward the far end of the building.

  Where the library entrance stood.

  Students passed by normally.

  Talking.

  Laughing.

  Moving from class to class.

  Nothing strange.

  But for a brief second—

  The distance looked wrong.

  The hallway seemed longer than it should be.

  Like the space had stretched.

  A blink later, everything returned to normal.

  Aerinox lowered her gaze again.

  Her fingers tightened slightly around the pen.

  Imagination.

  That’s all it had to be.

  Stress.

  Lack of sleep.

  The mind created strange things when it was tired.

  Across the room, Kelvin suddenly frowned.

  “Did anyone hear that?”

  “Hear what?” one of his friends asked.

  “That sound just now.”

  “Probably someone slamming a door.”

  Kelvin shrugged.

  “Yeah. Probably.”

  Conversation moved on.

  The teacher walked in a minute later and began the lesson.

  Words filled the classroom.

  Notes were written.

  Pages turned.

  Life continued.

  But something inside the building had shifted.

  Something quiet.

  Something patient.

  Something waiting.

  The fluorescent lights above flickered once.

  Then again.

  A few students looked up.

  The lights stabilized.

  Everything seemed normal again.

  But far down the hallway—

  Near the silent entrance of the library—

  The door slowly creaked open.

  No one was standing there.

  No one had touched it.

  The hallway remained empty.

  Something lickered in the shadows unknown.