This incident happened in Astoria, OR. I was about 9-10 years old. I was dropped off at my cousin's house. It is a very large house. Four stories including the basement, which is half in the ground coming out of a hill. This place always scared me. The feeling of being watched, seeing fleeting images and just messed up.
As I entered the house I yelled out, "Ryan." I heard a reply, "Up here." "Where?", "I'm upstairs." I made my way up the first flight of stairs. When I got to the top, I started looking around and couldn't find him. So I yelled out again, Ryan." "I'm up here," coming from the finished attic. So I went through the bedroom to get to the attic stairs, ran up the stairs and started to look for him again. I thought he was hiding. I went up to the window, looked out and saw Ryan outside in the woods, building a fort or something. I began to realize what just happened and felt sick to my stomach. There was only one way up to the attic and I know I didn't pass him. I was just standing there for what felt like minutes but could have been seconds. I had a tendency of being scared frozen by this kind of thing.
I am not sure after this point if I heard the floors creek because of me or something else. But I do know that when I started to move I was on a full out sprint down three flights of stairs to get out into the backyard with my cousin. I didn't tell him anything about what happened, although he asked what was wrong. I do know the voice I heard sounded identical to my cousin's voice. Looking back I remember feeling uncomfortable about going upstairs, but Ryan was my older cousin so I just went.
Less than a block away was an old cemetery, at the top of the hill. Oddly enough, we used to play flashlight tag there and I never had anything even remotely freaky happen. His house on the other hand was not right.