Prompt: Write a short story about a man who discovers a magical portal

Thomas began to notice strange things happening around him as he grew older. He would wake up in the morning and find strange symbols all around his room, and he would see figures out of the corner of his eye. One day, he was sitting in his favorite coffee shop when he felt a strange tingling in his finger. When he looked down, he saw that he had a small black dot in the center of his finger. He began to wonder if this was a sign from the universe, and decided to take the plunge and explore the portal.