I don't know if anyone remembers this, but WAY at the beginning of this series, I mentioned that I had seen a black shadow around the time I was twelve or thirteen. I had once seen it walk up my stairs and walk down a small hallway and it disappeared after that. My father at the time was also in the household and he did not hear or see anything. However, my dog did notice it.
I also had two different friends tell me that they saw a shadow standing in my doorway, staring at us in the middle of the night.

And I believe I saw it again, about six or so years later.

It started to rain, and I was downstairs getting water or something like that. I began to walk up the stairs when I see a shadow disappear into that small hallway near the stairs. I didn't see a full figure or anything, but I did see something that looked like the back of a leg.
I believe I saw that same figure I saw many years ago.

Also, on another note, my dog just won't sleep in my room anymore. He stopped a few months ago, and if I try to put him on my bed to sleep, he starts to pant and wiggle around. He is fine in the day, but he won't sleep in the night.