From the introduction: The adventure takes place in the Dwarven Brewery called "Fullstein Ale" The owner is a dwarf who goes by the name of Tappy. Tappy was drunk one night at a local pub and was flirting with a night hag who was polymorphed as a "beautiful" dwarven female. Tappy swept the night hag off her feet. When Tappy sobered up and saw her true form, he ran away screaming. The night hag now has come to the brewery to seek revenge. She has set free the elementals.