Cool, Carrie!  That's interesting that it took it's time like that.... and it was quite close to you!  When I think about it, shadow ghosts often appear as dark, roundish blobs in photos, so maybe that is supposed to be their form.  
![[Confused]](confused1.gif)
  Was it easy to see?  What color is your carpet? Just curious!
I had a strange thing happen the other night, something like Sundog's experience, but not as spectacular. I was watching TV when from above, a black, jaggedy-looking 'thing' flitted into my field of vision (above my eyes).  It left just as quickly.  At first I thought.... fly?  But it wasn't.  It was solid black and bigger than a fly.  I also checked the room (we all did!) and saw no insects, flying or otherwise.
Kell