Goodmen, Gentles, my Lords, in the best exemplification of the heroic stories you have found the Villain, battled him and his minions, plundered them of their treasure then returned victorious. But Now you discover a greater horror.. Lawyers.. Lawyers...
The modern definition of festival has four parts: 1. a day or time of religious or other celebration, marked by feasting, ceremonies, or other observances: the festival of Christmas; a Roman festival. 2. a periodic commemoration, anniversary, or celebration: an annual strawberry festival. 3. a period or program of festive activities, cultural events, or entertainment: a music festival. 4. gaiety; revelry; merrymaking. In the later eras of the European Rennaissance (early modern) there was an additional meaning; 5. The marking of important events in the life of a princely dynasty, such as marriage, the birth or christening of an heir, a coronation or a funeral, or the traveling to a new country/ state/ city.
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....)