Natalie was just looking to see if he was up, and would maybe want to walk into town for coffee or something. She knocked on the door, lightly, mostly as a warning, because she then opened it and peered inside.

Her heart skipped a beat.

And yes, the sensible thing to do here would probably have been to close teh door and walk away, because she knew the ghosts wouldn't actually hurt him or anything, but... Well, it didn't feel right. Not if she was intending to move in with Sam. And soon.

She did close the door, but not before she'd stepped inside the room. She wasn't blinking. Staring at the ghosts was clearly a better option.