Recently, the crops have been failing, the cattle have all died, the rivers are running with blood, and other such minor problems are occuring. The high priest of the temple has let it be known that some of your patron spirits are to blame, although he is unsure which. Together, you have been banished to an island just offshore from the temple, to pray and discuss the matters in hand.
You have been on the island for several weeks now, and, since the beer ran out last night, have decided to take drastic action to solve the crisis. You decide to pray to your patrons each night, to try and cause the death of the priest, and the casting out of the spirit who is his patron. You all agree that this is for the best, although a few people express concern as to the fairness and accuracy of such a method (they'll be the first to go). Through the decisions made during the night, and the discussion during the day, you hope that you will be able to cast out the spirits that have been causing the lands around your temple such suffering, and get back to the mainland and it's plentiful supply of inns and public houses. None of you are sure whose spirits are responsible, nor any other powers they may have. (Unfortunately, it would appear (through experimentation) that no-one's can produced any kind of alcoholic beverage from anything on the island, although there was a brief snatch of hope when somone managed to turn a tree into bird, until it was pointed out that the tree probably contained said bird before any spirit was invoked)
Anyway, a new day is now dawning, and you stumble out of you tents, with headaches that
Oh, and to try and cure the plagues. That too.