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

Jimmy was just about to go to bed when he heard a loud noise coming from his backyard. He went outside to investigate and found a small portal in the ground. He went through it and found himself in a strange place. He was surrounded by mountains and the air smelled fresh. He saw a small hut in the distance and decided to explore more. He found a door that led to a small room. There he found a magic staff! He tried to use it to leave the room, but something prevented him from doing so. He was about to give up when he heard a voice say, “Use the staff to open the door.” Jimmy did as he was instructed and the door began to open. He emerged from the room and found himself back in his backyard.