A week had passed since the truth was revealed.
But Nora did not feel at ease.
Her father’s words, the blue box, and the secret files never left her mind.
And on a quiet morning, she was sitting in the dorm room going through the papers she had taken from the box.
Suddenly…
A small white envelope fell out from between the pages.
She froze.
— “This envelope…
I’ve never seen it before.”
Yoonho came closer to her and said:
— “Open it.”
Nora slowly opened the envelope.
Inside was a small silver key and a short letter in her father’s handwriting.
She started reading with a trembling voice:
it means that the first stage is over.
But the truth you’ve learned is only the beginning.”
Nora gasped.
And continued reading:
“There is another file…
more dangerous than the blue box.
Its name: The Black File.”
Yoonho looked at the letter, and his expression changed.
— “The Black File…”
Nora whispered:
— “Do you know it?”
He answered in a low voice:
— “I thought it had been destroyed years ago.”
And before he could say more…
Nora’s phone rang.
She opened it quickly.
And it said:
“If you want the Black File…
come to the old train station…
at 8 PM.
Or it will disappear forever.”
The three of them looked at each other.
Taeho said cautiously:
— “It could be a trap.”
But Yoonho clenched his fist and said:
— “And it could be our only chance.”
Nora looked at the silver key in her hand.
And she felt that a new adventure had begun…
An adventure more dangerous than anything she had lived through