A Rise of the Runelords™ sidetrek adventure for four 3rd-level PCs.
from Need a Hook?:
...the party is persuaded by Das to investigate Chopper’s Isle for any sign of his son, lost five years ago during the Late Unpleasantness and assumed to be a victim of the Chopper. He offers no reward, but until the party agrees he withholds his blacksmithing services and spends an inordinate amount of time decrying the general usefulness of adventurers.
from Adventure Synopsis:
The Isle, undisturbed for five years, holds clues to the awakening of nefarious magic in the area, the presence of the Sandpoint Devil, and the haunt of Simon, protégé of the Chopper.
This is a "side-trek" adventure meant for use with the Rise of the Runelords adventure path.