I’m in the middle of coloring this at the moment. There are also a series of underwater caverns below, but I’ll show you those when it’s done.
The main thing the kuo-toa in this village do is capture travelers to serve as slaves or sacrifices. This is one of the reasons people stay at the godawful inn nearby. When the choice is either sleeping on a bed that smells like weapons-grade cat urine or getting brutally sacrificed to an imaginary fish goddess, most people would choose the former.