So the girl's name was Katelyn?
That's the thought that came to mind and our teacher put our classroom on lockdown and called the headmistress.
When she wasn't looking, I snuck into a corner and disappeared.
After running around the school grounds several times without any luck, I sat down and sighed.
Then I realized that this was the bench when I first saw Katelyn.
I looked to my side and saw a little not lying there.
I stopped time and read the note.

Hey demon,
That's right, I know exactly what you are, I don't care about your name or why you keep stalking me, I just wanted you to know that your secret is safe with me, as long as you tell no one about what happened earlier.
Not even Lucinda.
That's right, I know your girlfriend, she taught me a few tricks, so don't be so shocked.
I'm waiting for you.
Come find me.
-Katelyn