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

John looked down at the object in his hand, a cracked piece of crystal that emitted a faint light. He had found it while exploring an old abandoned building, and couldn’t resist taking it home. He had been trying to figure out how to open it for weeks, but nothing worked. He was about to give up when he found a note taped to the crystal.

“Find the portal, and drink from it. The power will be yours.”

John couldn’t believe it. He had found a way to enter the portal, and the power it offered was undeniable. He quickly opened the bottle of wine he had brought with him and took a sip. The liquid burned his throat, but he ignored it, drinking more and more until he was drunk. The portal was opening up before his eyes, and he was about to step through when he saw her.

She was beautiful, with golden hair and eyes that shone in the light. She was wearing a peasant dress, and she looked terrified. John hesitated for a moment, but then he stepped through the portal.

The next thing he knew, he was waking up in a cold cell, surrounded by Guards. He had no idea how he had gotten there, and he was sure that the beautiful woman he had seen in the portal was just a dream. But the nagging feeling in the back of his mind told him that it hadn’t been a dream.