Reverse of the usual pirate campaign: the party are stuck on an island and must deal with the assorted strange types who come to dock there (undead sailors, illithid brain-trawlers, smuggling gangs and spy rings making dead drops, treasure-hunting kobolds, the snurge, etc). Only at the very end do they amass enough ship parts to set sail themselves, after battling the antikraken (land-dwelling kaiju with a singular arm but dozens of hungering mouths).