X Marks The Spot

I took a couple steps cautiously towards her. She just kept moving. What the heck was going on? Should I have said something? No, that would've given away that I was there. But-

She turned around, throwing a dagger past my face, landing with its blade wedged between the trunk of a tree.

She stomped towards me and held me by the collar. And for the first time I heard her speak. "What the heck are you doing here?"

~~~

The girl at the back of the class who no one knows much about. No one cares much about. No one talks to. Olivia is that girl. However, Henry always found her intriguing. He always wanted to know more about this mystery he finds in this girl.

One day after following her home after school, he follows her to a strange place, and she doesn't leave for a while. This mystery just gets deeper when he notices that to 'get in', she has an X tattooed on her right shoulder.