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

When Timmy first saw the portal in his backyard, he didn’t believe his eyes. It looked just like any other opening in the ground, but when he stepped through, he found himself in a strange, mystical world. Timmy was excited to explore this new place and find all the secrets it had to offer. He quickly realized that the portal led to different places in time and space, and that by choosing which door he stepped through, he could make amazing adventures happen.