From the introduction: Like most large port towns with lots of food and bad sanitation, Ghenna has a pest problem. An unusually large rat colony has taken a liking to its scenic water-ways and mouldy cellars. Each day, a thousand more furry creatures scuttle through the city’s drainage pipes and sewers. Usually, this isn’t a problem the local royalty would concern itself with. However, after Queen Marissa found rats dancing in her new summer home’s bathroom, the pest problem has been swiftly declared a threat to the crown. Unfortunately, knights and city guards make for bad exterminators and not many sane men are keen to delve through Ghenna’s wild sewers. To make matters worse, the superstitious citizens declared the weirdly smart rats to be the heralds of the demonic forces supposedly living under the city. Hence, the “Reformation through Extermination” act was passed, allowing local law enforcement to pass down fines measured in rat scalps. Captured criminals were allowed to shorten their incarceration by delving into the sewers and bringing back heads or pelts. Need-less to say, criminal activity in Ghenna dropped considerably. Not because more criminals were deterred by the sentence, but because most of them never returned from the city’s rat-infested bowels. In this 1 – 3-hour introductory adventure, a party of 1st level characters are sentenced to reformation through extermination. The task is not only disgusting and arduous, it soon turns deadly. Can they collect enough rat pelts before becoming rat food? Is there a way to stop the infestation all together? Can they survive being “On her Majesty’s Pest Control Service?