This just happened to my daughter yesterday evening. She and her husband were sitting in the living room, when they heard a baby crying. Knowing of course there wasn't a baby in the house, she went to the back bedroom to check it out. Naturally there wasn't any more noise to be heard.
When she got up this morning, there was the baby crying again. It sounded like it was in the same room as she was. The house was completely quiet outside of that noise. The dog even raised its head as if it heard it to.
It's not like this was the first time they had heard noises there. Several times at night after they had gone to bed, they would hear footsteps in the kitchen. The footsteps would walk to the refrigerator and open the door. That would be it, no other noise.
One morning when she was getting ready for work, she saw a handprint on the mirror. At first she thought it was her husband playing a trick on her. She called him at work and asked him. He said he didn't do it, so she wiped it off and went to work. She got home from work before her husband did that evening, right there on the mirror was that handprint again. She left it there until he got home from work just so he could see it. Then she wiped it off and that was the last time that happened at least so far.
She said there is times when you are walking through the house, it feels like you're walking through a spider web. You might think this is a big old house, but it's not. It's a single wide mobile home that they bought new. The land around where they live has a lot of history. So maybe that has something to do with it, you think?