Demonic Well

From the introduction:

This adventure can be can be easily customized to a party of any size or level, or run as a level 2 adventure for 5 players. It can work as a small side adventure in an existing campaign, as a standalone one-shot, or the start of a new adventure. Use the links to the tools in their relevant section to customize the adventure to your party.

The hamlet of Peacely is a Halfling town that's also popular with Humans and Elves. It's built around a large fortress, and is known for its mines and industry. Most of the commonfolk work as farmers and miners. There's some tension between the races, with the halflings becoming concerned by the increasing number of outsiders in their town.