She’s freaking me out!

It’s 2:00 am. Everyone is sleeping, except for Ava. Who has now woken me with a quick jerk of her head. As I sleepily open my eyes, she’s lying on the edge of the bed, just staring towards the hallway. She’s Freaking Me Out!!
The house is quiet. I don’t hear anything. What the heck is she doing? She then cranes her neck a little further as if she sees something and gives a slight growl. Seriously?? There is nothing there. Is there? I lay there for a minute, trying not to breathe so I could listen more closely. Should I wake Steve? No, this is silly! If something were there, I would hear it/them, whatever it is. Wouldn’t I?
What if it’s a ghost or spirit that I can’t see? They say dogs are attuned to that kind of thing. Whoever “they” are. LOL Now my mind is racing. I do believe in ghosts. If it is one, I certainly hope it’s a good one and not a scary one. I’ve lived here for 18 years and have never been scared or thought there was a ghost here. She’s still staring down the hallway.
Ok, now it’s 2:45 am. I can’t fall back to sleep because I am scared, kind of.
Stupid dog! There’s nothing there. But she’s freaking me out!!