Carl Reiner, can you share another scary story?

Once upon a time, in an old, abandoned mansion on the outskirts of a small town, there lived a dark presence. People said that late at night, you could see a figure in the attic window. A young girl, curious about the rumors, decided to explore the mansion one night. As she entered the dusty hallways, she heard strange whispers. The further she went, the colder it got. Suddenly, a cold hand grabbed her ankle. She screamed but no one could hear her. She was never seen again.

There was a dark forest where no one dared to go at night. Legend had it that a witch lived deep within. One day, a group of hikers got lost and ended up in that forest. As night fell, they started to hear strange noises. Branches were snapping as if something large was moving. Then, they saw a pair of glowing eyes in the bushes. One of the hikers shone a flashlight, and for a brief moment, they saw a hideous face with long fangs and matted hair. They ran blindly through the forest, not knowing if they would ever find their way out.

One that always gives me chills is about a haunted lighthouse. A new keeper arrived at the lighthouse. At night, he would hear strange tapping on the walls. He thought it was just the wind at first. But then, he saw a wet footprint on the floor that led to the edge of the balcony. He looked out into the dark sea and saw a figure emerging from the water. It climbed up the lighthouse, its hands leaving slimy trails. When it reached the balcony, it stared at the keeper with its dead, white eyes. The keeper never returned to that lighthouse again.

There was a story about a fox that haunted an old mill. The mill was abandoned for years. The fox made its den there. One day, a curious boy entered the mill. He heard strange noises coming from the attic. As he climbed the stairs, he saw the fox. But this fox had a face that looked like a human skull. The fox hissed at him and chased him out of the mill. The boy was so scared that he couldn't sleep for days, always seeing the fox's skull - like face in his dreams.

I was sleeping. A cold hand touched my face. I woke up. But no one was there. I felt a chill down my spine.

I opened the attic door. A cold hand reached out from the darkness and grabbed my wrist.

There was a camper in the woods. He noticed a strange smell. Then, he saw a large, dark shape moving in the bushes. He quickly got into his tent and didn't come out until morning.

I'm not sure specifically which 'Fritz Reiner horror stories' you mean. It could be about his strict conducting style in the orchestra. Some musicians might have found his high standards and no - nonsense approach intimidating, like he would demand absolute precision from every player.

I looked in the mirror, but my reflection had a sinister smile that wasn't mine.

I'm sorry, but I don't know who Carl Dennis is specifically, so I can't really share his old story. There are just too many people with that name.