When my cleric arrived at level 40 it was time to do this quest. I took my level 51 pally to Dulak and tried to get the Deepwater Emblem to drop from a mob on the West Dock that has no ship. I camped my cleric at the top of the dock. Mobs aren't bad there but I cleared the fisherman just to the right of the top of the dock first in case a non rooted mob wandered up there. Also, to do that I waited until the wandering guards were not in the area as the fisherman paths to them before coming to me at the top of the dock. Then I would take out the dock mobs one by one as they were single pulls. Did this about 2o times and sometimes a named ogre pops that is a little tougher. I found that I had to root continually when they got to about 30% health as their magic resist is so high the root barely sticks and they often resist it - annnoying eh? Well this stategey was getting me no where and over a couple of sessions my pally gained about one yellow bulb. I had been OOC'ing for a PST if the Deepwater Emblem dropped. Finally someone from the Lady Dirulia called out tha an emblem was rotting. I camped my pally on the top of the dock and uncamped my cleric -- rushed over invised and guess what - the Deepwater Emblem had evaporated by then. So I stayed and they thankfully invited me onto their group. Five minutes later it dropped WOOT!!! - I was happy for that. I stayed and helped and guess what, a while later there were two more rotting on the deck...guess best thing is to try and get into a ship group. Anyway stayed and helped them for a few hours and gained almost a level - they were about lvl 52 to my cleric's 40. Their cleric became the tank - a little unusual but it worked and when I was low on mana he healed - made it all very easy. We also had a beastlord, wizzy and chanter.
Finally it ended and next day I went back to finish the quest -- took a few hours over two days and now my cleric is level 42. I have been there many times before and with my pally had seen both erudite spirits up together several times. Strategy is to clear the undead - in particular where the female erudite spawns by the side of the shipwreck. (Spirits always spawn in the same spots) Finally after killing the placeholder about 8 times I went back today for the third time - killed a few undead in the area and sat to med in front of the spirit spawn spot and -- she popped right in front of me --- WOOT -- just handed in the Alina's Emblem Millius had given me and there on my cursor was the Temperance spell. This all took quite a while but believe me when you first cast it you know it was really worth it.