Brood Wars

Objectives

 * Journey into the trenches of the Stygian Veil and kill the Stygian Lords. 4...0 of 4 still remaining.
 * See Adept of Whispers for your reward.

Reward

 * 10,000 Experience
 * 800 Gold
 * 800 Lightbringer Promotion Points

Walkthrough
The four Stygian Lords are each at a different place in the area. Each trench has a few hidden spawns that will ambush the party. Upon entering any trench and getting near the half-way point, a large spawn of melee creatures will appear at either end of the trench and then run to the opposite side (sandwiching whoever is inside). Also, one or two Tormentor demons will spawn on the two cliffs overlooking the trench. It's recommended that the party have someone go in and trigger this spawn first before they enter the trench. This player can either just die in there and get Rebirthed from the cliff above or they can use a teleportation skill like Recall to return to their party members.

The Stygian Lords on the map are as follows:


 * A monk with a stationary group of Tormentor demons as well as a hidden spawn of the Stygian creatures that will appear upon entering the alcove he is found in.
 * An elementalist with a large hidden spawn in the alcove he is found in
 * A mesmer with a stationary group of Tormentor creatures and a few hidden Torment Claws.
 * A necromancer with a stationary group of Tormentor creatures.

The party should pay attention to the patrols roaming near each boss. Especially in the case of the elementalist as one patrol can come from behind the party and surprise them.

After getting the reward for the quest, six Smothering Tendrils will appear and the Dreadspawn Maw will open. Make sure before taking the reward that all party members clear the area with the large maw and are up by the Adept of Whispers so they do not get killed by the Tendrils' special attack.

Killing the Dreadspawn Maw allows you to spawn a Stygian Chest and progress to the quest Mallyx the Unyielding. See there for a walkthrough.

Initial dialogue
Adept of Whispers
 * ''"The outer defenses are clear and many demons have been slain. Now we must seek and destroy the Stygian Lords. These four great demons are the Dreadspawn Maw's inner circle. We must slay them all to get to her. In doing so, we shall throw the demonic forces in this realm into total chaos, crippling their ability to spawn their infernal armies."

Reward dialogue
Adept of Whispers
 * ''"You have the gratitude of the Order of Whispers. We have struck a great blow against the forces of Mallyx the Unyielding this day."

Trivia

 * The name of this quest probably comes from the StarCraft expansion, StarCraft: Brood War. Many of ArenaNet's employees formerly worked at Blizzard, the company that produced the StarCraft series.