You receive a vision of a rooftop "somewhere close by", where a rare moss grows; in the vision, you know the moss is suitable for greatly enhancing the effects of certain types of potions. Now go and find that rooftop. Don't fall off. (Of course, rooftop runners *will* be taken for miscreants by the local City Watch....)
village of the damned. A village of people that have been 'raised', from death by priests, too many times. At first glance the folk appear as any other, but upon closer examination, they are pale, drawn, and tired...