This is sort of a DnD / PnP RPG campaign prompt:
When you all were children, you were playing in an forgotten shrine you found in the forest. Through your play, you accidentally freed a demon from where it was sealed by speaking. Laughing, it flew away to do harm unto the world.
For reasons best known to the minds of 10-year-olds, you all swore an oath to never tell anyone else about the demon or about releasing it. You even followed the stories and bound it in blood with the help of a small knife.
And lo, it worked - one of you tried to tell your mom about what happened, but, as described to the rest of the group, the words wouldn't come out of your mouth.
It is now over a decade later, and you are all adults, starying careers. Freeing the demon is long since forgotten by most of you - it flew away and never came back.
Except... a messenger brings a report of a growing darkness to the north, and when you try to share the gossip with a friend... the words don't come out of your mouth.
It's the same demon.
You're older now. You understand responsibility. You gather your friends, the only ones you can speak to about the demon. You all released the demon unto the world. Isn't it your responsiblity to try and do something about it?
