So there's this senior at my school (I assume she's a senior, she's not in my grade and she's way to old to be a freshman or a sophomore), I've never talked to her and don't know her name or anything, I didn't even know she existed until I noticed her a couple of weeks ago.
Anyway, everytime I see this chick, there's this crimson trail that she leaves when she walks, it looks kind of like blood. Whenever I try to go over and get a closer look, something comes up. Like a teacher will call me into their room, or a friend will come and playfully tackle me or something, then when I look back, both the trail and the girl are gone.
Often I see the trail but I don't see the girl, but if I follow the trail from a distance, I find her.
Whenever I try to talk to someone about it, they seem just not to hear me.
As far as I can tell, no one else can see this or notices anything weird going on.