Park you tank/ group under the last airhole of the tunnel near Vessels room. The the chanter goes to pull Vessel:
Go in to Vessels room and set your pet to "guard" and target Vessel now go to the hole that leads to sewers and get your pet to attack Vessel, then call your pet back. Either jump in water and join group or get group to get up from water, the room is save with just 2 trash mobs there.
Did this with chanter and warrior only, he needed 2 heal potions to get Vessel down.
You will need to use the EQ map because EQAtlas.com does not have the sewer system on it. I am not sure if the normal map that comes with the game contains the system or not. If it doesn't you will need to download it from mapfiend.
The puller and the party take two different routes to camp.
After putting invis and levi on the puller, the party swims to the end of the sewer line, which has its entrance under the stairs to the east of the small. lizard-made lake. The puller then goes to the Temple of Terror, and turns right after the stairs entrance. Go through the red portal of Doom.
This will get you to the East Tower which has ladders leading all the way down. Once on the bottom head to the broken bridge on the map. Float down until you come to an opening with trash critters. Head into the cave and turn left through the secret wall.
Following your map, go up the stairs and then up the ramp. Stop here because if you go strait or left you will fall into a pit if you don't have enough movement to carry you across (likely) or make it past the pits only to be going in the wrong direction.
Go right and make sure your view is looking a bit up so you don't float into the not hidden pit. Once across the pit, go up the ramp.
Here you can just follow the passageways to his location (590, -825), then tag him and run to either the end of the sewer line on your map, or to the next to the last air hole to pull him to camp via a water route. Note you need to take the most direct route (which ever you choose) Any deviation other then the obvious direct route will result in you running through a one-way wall and you will have to start over at the broken bridge.
As mentioned below, once at camp make sure he is in the water (unless you are brining a vast amount of DPS to the fight). Good luck and happy hunting.



Xolion Rod