Extermination

1. Entrance
2. Bridge
3. Dark Cleric

This is the fourth and final quest in the Greymoon series. In this quest you find out who is leading the invasion of the trolls into the Greymoon ogre's caves and eliminate him and the last of the trolls.

You start at the Entrance (marker #1) and you will head toward the Bridge (marker #2) while killing many trolls along the way. Once you get to the Bridge, the traps from the previous quest have apparently been repaired as they are still active. There is a possible named across the bridge called Blizzard that you can aggro and drag through the traps to kill him off. Again, send a rogue with high reflex saves across the bridge to deactivate the traps.

Now head north killing more trolls along the way til you reach the area around the Dark Cleric (marker #3). The area is similar to a pillar in the middle of a room. Clear around the pillar (possible named, Darksting) and prepare your party for a fight with the Dark Cleric.

Climb up the center pillar and quickly dispatch of the cleric as fast as possible. The longer he is alive, the more spell damage he can deal out. Once he is dead, the quest will finish.

Finish out and head back to Bruku for an item reward. Speak to Bruku again and he will give you the Cult of the Six quest and tell you to head to Lord Hragg.