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

Tommy was just about to go to bed when he heard a loud noise outside his window. Curiosity got the best of him so he went to investigate. What he found was a large, rusty gate that led to an old, abandoned building. Tommy tried the gate, but it was locked. He looked around and saw a large, green portal in the basement of the building. He decided to go through it. Once he was inside the portal, he found himself in a strange world. He saw a large, misty castle in the distance. Tommy decided to explore the world a little more and found himself in a place called the Forest of Forever.