TB3: Bloody Jack (5e)
Richard Pett's Crooked City
All the children the Blight know nursery about Bloody Jack, cautionary tales for naughty or overly inquisitive children to mind their manners and obey their parents. However, their parents know the true horror stories of those times 50 years ago when the lunatic serial killer known as Bloody Jack Carver stalked the Blight and abducted children. The killing spree ended, but the perpetrator was never caught.
When the PCs are deputized to assist in a homicide investigation, they find terrifying clues that point to the three-decade old Bloody Jack killing spree. Signs indicate that they were just the beginning. The PCs are in a race against time across the city that is Blight as they attempt to stop a new killing soree before it can start.