Here are some NPCs for your campaign.
Calvin and his two business partners, Brother Simeon and Brother Thaddeus, are monks that run a plumbing business called Calvin and the Drip Monks.
Using their flurry of blows, they can send ki energy vibrating through pipes to locate and dislodge blockages, helping improve water flow and ensure that everyone in town has clean drinking water.
Recently, however, people are complaining about how their water has turned yellow, syrupy, and thick.
Calvin and his Drip Monks need your help to venture down into the sewers and investigate.
If players agree to do so, they can encounter giant rats or thieves, but eventually they will stumble upon the true source of the problem: a huge ochre jelly.
Ochre jellies can climb walls, squeeze through tight spaces, and deliver bludgeoning and acid damage.
They can also split into smaller jellies as a reaction, making this fight a challenging opportunity for lower-level parties.
How would your party best take down a giant jelly? Let us know in the comments.
