I completed this quest a long time ago and was wondering if anyone can coaborate what I found. I camped the ghost by the ship for 2 hours and killed everything around the boat that I could get my hands on, it never pop'd. Fedup with the time it was taking I swam back to the NPC by the light house that starts the quest and hailed him a few times, swam back to the beach and ran over to the boat, believe it or not the ghost was standing/hovering there waiting for me. Coencidence? I don't think so, I think the triggers are the npc's you talk to about the quests. I have heard people say kill everything in the zone and it will pop, or do a little dance, make a little love......etc.. I think that when I did the last turn in for the Temperance Quest the ghost pop'd and someone else was waiting there for it and when I got there it had been killed. In fact I know thats what happend because someone OOC'd they had gotten Temperence right after I turned in the last item and headed over to camp the ghost.
Someone has to be able to coaborate this.