Here's a cool cultist hideout or anyone else's hideout in a cavern complex next to an underground worship place. The location features an underground stream with plenty of options for visiting each area. The different tunnels and waterways offer a non-linear way to exploring this location. I also made use of some of the tokens from the recently released mansion token pack.
I release stuff like this with included lore and descriptions twice per week at the very least. Consider pledging to get access to all these goodies.