“ Something lives in the fog in a certain region and travels with the fog. Kidnaps or kills, or is simply heard and 'felt'. ... fog is rising, heed the warnings the elders spoke!”
“ Under the sewers of a large town ancient burial chambers are discovered. If the PCs investigate they fill find that a pale white flowers grows amongst the graves, in the dark.
How do they survive without light? What is their origin? Why in a burial chamber and not just in any old cave?
Can they be sold or do they have any special quality at all? It is up to the PCs to discover.”