Breaking the Broken

Overview
Summary
 * 1) Stave off the assault of Abaddon's forces in Nightfallen Jahai.
 * 2) See Keeper Jinyssa for your reward.

Obtained from
 * Keeper Jinyssa in Gate of Torment.

Requirements
 * Invasion From Within

Reward
 * 4,500 XP
 * 400 Gold
 * 100 Lightbringer Points
 * Inscribed Secret

Dialogue (Keeper Jinyssa)
 *  Difficulty:Master I wonder, fleshy one, what your purpose is here... But, now is not the time for trivial contemplation.
 * Our scouts...those that managed to make it back...have told us that Abaddon's forces are on the move. Waves of his troops march on our location as we speak. If we are to mount a counter-offensive, then we must not falter here! Will you lend us your aid?


 * Accept: Abaddon's minions march to their defeat!
 * Reject: Abaddon's minions? I'm marching outta here.

Reward dialogue
 * "You have bought us a moment of reprieve. There is no time to rejoice, however. We must prepare for the battles that yet lie ahead."

Followup The Troubled Keeper

Walkthrough
You have to survive 4 waves of torments. The third and fourth bring along a boss each. It can be done with henchmen, but may consume a bit of time. Always bring down the spellcasters first!

This quest is easily completed with 3+ humans equipped with Lightbringer's Gaze. You can simply stand at the resurrection shrine with 60dp and kill the enemies with the lightbringer gaze one by one.

Completing the quest with henchmen may be more difficult.

Bring a monk, 2 tanks, and an SS with Backfire. Have the monks cast Protective Spirit and Shielding Hands on you, use Death Nova on the party, and have the SS cast Backfire on a healer. Use Putrid Explosion for spike damage or Necrotic Traversal for more health degeneration damage. If you have a chance, animate a Flesh Golem, and put Death Nova on it.
 * For those "desperate necromancers" who want the elite skill:

If you are doing this with heroes/henchmen, it helps to bring everyone away from the Resurrection Shrine after you have died and resurrected. You can flag a spot behind where the mobs are and then the heroes and henchmen will run to that spot after they are resurrected, which will make it easier for you to hit the mobs.

This quest is actually easily done with heroes/henchmen. At the start, run northwest a short way so as not to aggro the mobs that are approaching. Now just pick off the last mob (group of 3). Often, attacking the Quickening Zephyr spirit will aggro just the mob you want. When these die, go back to your safe spot. The next group of mobs will spawn and run towards the resurrection shrine. Again, just pick the last mob of the group off. Repeat this until the boss spawns and then kill him. The quest will complete, even though most of the enemies are still alive at the resurrection shrine.
 * Alternate approach:

If you have The Oddbodies (Quest) quest active, you can make use of the Oddbodies to help you fight off the enemy waves. The presence of 6 additional allies with a diverse and powerful range of skills should make this quest much more manageable. It is recommended that you leave from either the Gate of the Nightfallen Lands or the Gate of Pain when attempting this tactic.
 * Calling in backup: