Lords of Waterdeep: Scoundrels of Skullport (The Skullport Module) (2013)

Skullport—also known as the Port of Shadow—is nestled in the heart of Undermountain, deep below the streets of Waterdeep. It is a haven for nefarious crimes, underhanded deals, and back-alley murders. Those who visit Skullport do so at their own peril, for around every corner are new ways to make people disappear.