Ok, you going to think I'm crazy and I should stop staying up late reading those mystery books but when I was helping my mom in the yard today I was pulling up weeds by the fence and something caught my eye in the backyard. Well, being the little adventure hunter I am I creep along the wall. I have no idea what it was but it went around the rest of the house but when I followed it it just...vansihed. I asked my mom if she was in the backyard and she said no

What could it be

My mom is not the one to play these kind of tricks ether and my sister wasnt home

I really dont think it was my mind or my eyes ether because it was plain as day. Could be thought because I never really saw all of it.