New findings?

I went out to the spot yesterday morning, and found a key laying on the ground, half buried. It doesn't go to my door, it doesn't go to anything I own, I have spent the better part of a day testing things. So, enough for that, I have put it in a hiding spot for now. I am posting this late because for the better part of my week, I have been hearing things in my living room at night. Stuff moving, people chatting. Ive since barricaded my door to my room. It really sucks my computer is in the living room.