Entry 5

I worried for my sanity. I heard that girl again last night. Instead of waiting for her to leave, I left my room and went to look for her. I followed her voice to a bedroom on the first floor. When I reached the door, she stopped singing. But when I opened the door, there was no one inside! Is this a prank that the neighbors pull on each new resident? Or are there actual ghosts? That's absurd. There is no such thing as ghosts. I will inspect the room tomorrow. I will need a clear head...