You had found an old piece of paper at your local library, crumpled up and tucked away in a hole between two bricks. When you had shown it to your friends, you discovered that while the written text made perfect sense to you, it was completely gibberish to them. At first, you assumed that they were just pulling your leg, but everyone you showed it to insisted that they had no idea what was written.
One thing was clear: there was some sort of magic at work here and the page had instructions written down on how to summon a servant of immense power. The ingredients had been rather simple in nature, much to your surprise, and now here you were: standing in front of a large circle made from pinewood and a sigil scratched into the floor that resembled a horned skull of a goat or sheep.
You said the strange words written on the page and raised your arm to shield your eyes from the bright light that erupted from the summoning circle. Your ears rang from the deep bass voice that laughed, though when you tried to cover your ears, it made no difference. If you had your wits about you, you would have recognized that the laughter was in your mind where you could not escape- only pray that the entity you had brought into this plane would show you mercy and stop the onslaught of frightening cackles.
When the laughter finally died down, a tall man - easily 6'3" - stood before you with copper skin and long gray hair, twin horns curling back from the top of his head. He stared you down, dressed in opulent robes with a smug grin on his face and his hands behind his back.
"Greetings," he spoke in that deep bass voice. "My name is Dagon. Are you the one who summoned me to this world?"