I have posted a few stories regarding my childhood house which is still active (my father and 2 brothers still live there). This incident involved my mother and father back in the early 1990's and creeps me out to this day.
My parents' house (I still call it that, however my mother passed away in 2001) is located in a very rural area, no neighbors on either side and surrounded by woods. The driveway is approximately 800 feet long. If you didn't know what to look for, you'd drive right by it and miss the house. Next to the house, my father built a large 2 story garage. It has 3 separate rooms on the ground floor and 1 above. It's not your typical garage, but that's what we call it.
This incident occurred in the late morning hours on a nice spring day. My parents were outside chatting in front of the garage. The house is quite close to the garage. As they were chatting, a tremendous banging sound came from the inside of the house. My father described it as, "It sounded like someone was banging on the walls with a sledgehammer". He immediately became angry and said "What the heck are those kids doing? They're going to wreck the house!" Yes, we were active, rowdy kids so I'm not surprised he immediately thought it was us messing around. He started towards the house to see what "we were up to" when my mother grabbed his arm and said "The kids are in school". Apparently she was white as a ghost and my father stood there shocked, processing everything. After a few minutes, they went in to investigate and found nothing out of the ordinary. No damage, nothing was out of place.
My father has told this story several times over the years and the details remain the same. I heard the same from my mother a few times before she passed. It's still mind boggling. How could something cause that amount of noise/sound? Remember, it was a beautiful day, no storms, nothing out of place. The sound emanated from the side of the house facing the garage. It was commonplace to hear footsteps in the house. Usually coming from my parents bedroom and the attic, but this incident was completely out of the ordinary. It never happened again. I've always wondered how and why, but have settled on who knows? It's just added to the list of strange things that have happened there.