No Prep Module: The Haunting of Seaside (Patreon)

https://www.kassoon.com/dnd/adventure/no-prep-module-the-haunting-of-seaside/ 

Blighted events in a coastal town point to a dark supernatural force. The PCs must confront restless spirits, disturb ancient rituals, and unravel a vengeful wraith's sinister plot.

https://www.kassoon.com/dnd/adventure/no-prep-module-the-haunting-of-seaside/