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

When Tom was a child, he loved going on camping trips with his family. His favorite part was finding the magical portal that would take them to different worlds. One summer, Tom found the portal again and accidentally stepped through. He found himself in a strange world filled with creatures he had never seen before. He was scared but also intrigued. He decided to explore the world further and found a way back to his home world.