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

Edmund was always one for adventure. He loved to explore new places and meet new people. One day, while exploring an old abandoned building, Edmund stumbled upon a strange, mystical portal. He stepped through and found himself in a strange, dark world. Edmund was afraid at first, but he soon discovered that he could control this new world. He used it to his advantage, becoming a powerful sorcerer.