The school bell rang, piercing the early morning fog. As a group of friends trudged towards the imposing building, they couldn't shake off an eerie feeling. The school was rumored to be haunted, and today, they decided to investigate.

Their first stop was the library, the epicenter of the strange occurrences. They split up to cover more ground, with each step echoing through the silence. The musty smell of old books seemed to be hiding a secret.

Suddenly, a book flew off a shelf, landing open on the floor. The pages flipped rapidly, as if guided by an invisible hand. It stopped on a page describing the school's hidden past - a tragic fire incident.

The friends regrouped, discussing the book's revelation. Their faces paled as they realized the haunted rumors might be true. They felt a chill run down their spines, but their determination didn't waver.

They explored deeper, venturing into the abandoned west wing. The air grew colder, and an eerie silence consumed the halls. Suddenly, they heard children's laughter echoing through the empty corridors.

As they followed the laughter, a cold wind blew past them. It led them to an old classroom, untouched by time. There, a single desk in the center was marked with the year of the fire.

A sudden clatter made them jump. A chalk piece started writing on the blackboard, detailing the night of the fire. The friends watched, frozen in fear, as the tragic story unfolded itself.

They discovered the fire was an accident, caused by a faulty heater. Many students were trapped. The spirits were not malevolent, but simply wanted their story to be known. They needed closure.

The friends decided to organize a memorial for the victims, sharing their story with the town. The day of the memorial, the air felt lighter. There were no more strange occurrences.

The school was no longer haunted. The friends had given the spirits peace. They had proven their courage and resourcefulness, unravelling the mystery and restoring harmony to their school.

The school bell rang again, this time a sound of normalcy. The friends walked back into the building, no longer an imposing structure but a symbol of their victory over fear. A symbol of unity and bravery.