I checked my neighbor's house again last night, and it was back.
I went in and did the same thing that I had done the previous night. Again, it left. I talked to my neighbor about putting down salt. This is something that we had done my two previous experiences. (The salt puts down a barrier that spirits won't cross.)
I will be watching with interest to see what happens. I'm also curious to see if the girl sleeps in the bed tonight or not. I guess we'll see.