When I was in the tenth grade me and my friend Penny had a bit of an obsession over the supernatural. We decided to go to a pair of abandoned houses that where used by CN for the men.
We went into the houses with a recorder, camera, and a flashlight. We climbed through a broken window on the ground floor and we sat down in one of the empty rooms. I set up the camera and recorder. We sat there asking questions like "Is somebody here?", "Who are you?" and so on. I didn't hear anything and neither did she so we went upstairs. The staircases where very rotten so we went one at a time. And as I went up after her, I could have sworn I herd footsteps behind me on the stairs. I thought, "They're old stairs, that's all" and shook it off.
Again we sat down and set up our equipment and started asking questions. In the room I felt really uneasy and had a hard time breathing and so did she. She started getting scared so we left.
When I got home and looked at what we recorded, I found a male voice that mumbled something and sounded as if he was gasping for air. Then a large shadow figure standing in between me and my friend the whole time while downstairs. Of course this really freaked me out, so I never told my friend about it to this day since I don't want to freak her out.
About a year and a half later I learned a man who lived two houses from those houses died from pneumonia, which many people do in my town. After that I never want to go near those houses again, let alone go back into them.
Please be careful. Climbing rotting stairs can be extremely dangerous, even if you are trying to be cautious. If you go somewhere like that again, take safety equipment and first aid, as well as letting someone know where you are going, in case you are injured and cannot get out. Be careful on bottom floors as well, as you can fall into a basement. (I have some pretty intense motherly instincts).
Do you happen to have those recordings? You can upload to YouTube and post them in the comments so we can also see.