Bats (musical)  Bats is a musical written in 1983 by two Australian writers, Ian Dorricott and Simon Denver. It has been produced numerous times by school groups. The remote village of Humperdink in the shire of Engelberta in the Transylvanian Alps has survived for centuries by growing grapes, and even though they can boast about Count Dracula's castle, no one really seems to care. The towns "Grape Harvest" is their main industry. But when the grape harvest is ruined by disease, and the town is on the verge of bankruptcy, they need outside money, so decide to market their attraction as a location for creatures of horror.