Something's rotten in Restenford! The adventure is set in the town of Restenford but with a little work can be adapted to fit almost any setting that features pirates (or once did).
"When the hunters become the haunted" A priest of Helm summons an unlikely ally.
"A strange breed, indeed" The story starts in a fantasy kingdom called Lungardy, but the DM may choose any setting that borders a large body of water.