Face Slash

I'm at a volleyball camp. It's the middle of summer and we are playing on a court in the grass. It is a huge court and everyone is just warming up and serving before we begin to practice. I notice that there is a guy on the other side of the net who will not stop staring at me. It really irritated me so I began practicing my aiming skills while serving, I hit him a couple times but then everyone was gone. All of the sudden I was the only one outside besides the people in the pool across the field. I began to feel excruciating pain in my face, like someone was ripping it apart. Then I noticed it was because it was being ripped apart, more like slashed by an invisible knife. I called out for help and my mother appeared. She called out to the nearest person there to call an ambulance and when they arrived they put a rune on my stomach that always had to be visible. I wore a cut off shirt with a rune on my stomach for the rest of the time I played volleyball that week.