So..
There's a small village. Fairly peaceful place, but it's right on the edge of a kingdom, practically the middle of nowhere. So if something goes wrong, they probably won't get any official help.
Hired adventurers are the closest thing they get.
So, their current problem is involves certain ruins. They have long been the haunting place of certain crazed cultists, rumored to revere demons. However, recently they have appeared more and more, closer to the town than ever before. People are getting nervous, so the Lord Mayor has put out a notice to the Adventuring guilds that he wants someone to.. convince the cultists to leave.
Enter the protagonists.
“She'd become a governess. It was one of the few jobs a known lady could do. And she'd taken to it well. She'd sworn that if she did indeed ever find herself dancing on rooftops with chimney sweeps she'd beat herself to death with her own umbrella.”
― Hogfather