The smallest district in Ptolus is also the worst. The Warrens holds the city’s slums, a place as lawless and dangerous as one might fear. The Warrens in the eastern part of town is a terrible slum sick with poverty and crime. Rumors say that the City Watch won’t go down into the Warrens. The streets here have no names, and most of the buildings aren’t marked—the place is not friendly to outsiders. Some visitors may have experienced a little theft or crime in the city, but it’s nothing compared to what goes on in this district.
Ptolus Players Guide (pg10)
Ptolus 5e (pg372)
Some place the headquarters of the Vai within the Warrens. Others whisper of a crime lord named Jirraith and his gang of young thieves called the Pale Dogs who really run the place. Although you’ll find no addresses or street names here, you might stumble upon the home of Jirraith, a crime lord with no appearance, and the headquarters of the Eight Shadows.