From the introduction: As the PCs enter a foreign town, an epidemic of hallucinations erupts. At first, it seems that the town has been attacked by demons. Then, the truth emerges, and the governor closes the town doors, waiting for the wave of madness to abate. The PCs must take up the investigation, unless they want to remain locked in the city, and possibly share the fate of its population. User summary: For 1st or 2nd level characters.