“ Every now and again, the region encounters a dense blue fog. Every now and again, things disappear into the fog never to be seen again and things appear out of it from other places or world. It seems the fog is the material form of some minor diety charged with moving things around the universe to balance cosmic forces.”
“ The party receives a poorly written call for aid from a nearby mountain community. When they arrive, the town is overrun by trolls, but where are the villagers?”