have you ever seen the movie "Dark Skies"?

I have not.

Is it about alien shadows? That sounds pretty cool. I think I will watch this movie; I like horrors.

I read somewhere that the 'shadow people' are interdimensional travelers. I wonder if the reason we see them as shadows is simply because they reflect colour wavelengths beyond our sensory range.

First if all you need to know the layout of my hallway stairs bedroom. If you go up the stairs to the hallway, if you go straight you go to the bathroom. If you turn left you go to my room. Okay,finally fell asleep last night at about 3 am, I woke up at exactly 4:37 hear footsteps in my hall. Of course being me, I walked into the hallway to see what it was. Nothing was there but my dog was asleep on my stairs. My dog usually sleeps in his chair in the front room which is on the opposite side of the house. We even put a baby gate up so he can't go into my room or the laundry room to try to steal stuff. I checked if the baby gate was up, and bit was. He can't jump it so I don't have any reason for him to be there.

The working of the ghosts....