Howling in the Night horror story

As the author of my new book, ―True Ghosts‖, I have over 22 true ghost stories in my history. My husband and I live with our ghosts and typically ghosts do not bother us. We understand them, and they are welcome in our home.

However, there was ONE experience that terrified both of us. That is the one I will submit here!
One stormy, snowy winter night, my husband and I went down into our basement to install a punching bag from the ceiling. My husband had been experiencing a lot of stress in his job, and we decided he could work out his aggressions by punching the punching bag. We had all our tools laid out on the table and were just about ready to start pounding the holes for the bracket that would hold the punching bag. Then we heard a clap of thunder, kind of unusual for a snow storm. THEN suddenly we heard a very anguished, low, moaning sound outside the side door to our house! We stared at each other. The sound came again. It sounded like a human voice howling in agony and frustration. I have never heard such an anguished moaning howl before! It stopped my heart for a second!

My husband bounded up the stairs two at a time and opened the side door and looking around. I came up behind him to take a look as well. There was about an inch of snow on the ground, and we fully expected to see footprints going around the house and God knows what else, but there were NO FOOTPRINTS IN THE SNOW. Not a single one!!!

We were both so unnerved by the experience that we never even went back downstairs that night. We abandoned our project entirely, and spent the evening trying to figure out who, or what, had made such anguished sounds outside our door! I have my suspicions.

I believe it was my mother and that she was trying to warn us not to hang that punching bag! Maybe she was afraid that the storm would connect with the metal brackets we were going to attach to the ceiling. She always was afraid of being struck by lightning. My husband thinks it was a ghostly animal howling to get in. Many of our beloved animals are in spirit now, so he could be right! We have never met a ghost who caused actual harm to anyone, although I once was pushed down several steps during a ghost-busting session! Ghosts typically aren‘t strong enough to do much physical harm, but they sure can cause their share of fright.
so this is all about the story.