Destruction's Depths

Overview
Summary
 * Find and reclaim the Central Transfer Chamber
 * Take command of the golems and find the missing Asuran patrol.
 * Rendezvous with the Ebon Vanguard.
 * Clear a path into the depths with the Ebon Vanguard.
 * Continue deeper into the caverns.
 * Fight beside the Norn as they hold off the Destroyers.
 * Travel to the Central Transfer Chamber via the Asura Gate.
 * Clear the Central Transfer Chamber of Destroyers.

Obtained from
 * Jalis Ironhammer in Battledepths

Requirements
 * Heart of the Shiverpeaks

Reward
 * 2,500 Experience
 * 3,000 Dwarven reputation points (4,500 in hard mode; 450 thereafter)

Dialogue
 * "The Eye of North has revealed the source of the Destroyers. We must journey deep within the Shiverpeak Mountains and eliminate the evil at its core. The power of the Great Dwarf and your many allies await your command to begin the final assault."

Intermediate dialogue

NPCs

 * Norn
 * 20 Egil Fireteller
 * 20 Olaf Olafson
 * 20 Sif Shadowhunter
 * 20 Olrun Olafdottir
 * Dwarves
 * 24 King Jalis Ironhammer
 * Ebon Vanguard
 * 20 Captain Langmar
 * 20 Artificer Mullenix
 * 20 Chance Redding?
 * Asura
 * Oola
 * ...more to be added...
 * 20 G.O.L.E.M. 2.0 (Three will be present at the start of every level)

Monsters

 * Destroyers:
 * 28 Destroyer of Bones (All levels)
 * 28 Destroyer of Flesh (All levels)
 * 28 Destroyer of Sinew (All levels)
 * 28 Destroyer of Deeds (All levels)
 * 28 Destroyer of Hordes (All levels)
 * 28 Destroyer of Hope (All levels)
 * 28 Destroyer of Thoughts (All levels)
 * 28 Destroyer of Lives (All levels)
 * Dragons
 * 20 Chromatic Drake (floor 2)
 * Dryders:
 * 24 Bloodtaint Dryder (floor 1)
 * 24 Dreadgaze Dryder (floor 1)
 * 24 Soulfire Dryder (floor 1)
 * 24 Terrorbond Dryder (floor 1)
 * Elementals:
 * 20 Icy Stalagmite (floors 1 and 2)
 * 20 Shattered Elemental (floors 1 and 2)
 * 20 Whirling Wisp (floors 1 and 2)
 * Nightmares:
 * 20 Scourge Vaettir (floors 1 and 2)
 * 20 Shadow Vaettir (floors 1 and 2)
 * 20 Mist Vaettir (floors 1 and 2)

Bosses

 * 28 Avatar of Destruction (While fighting alongside the Norn and near the Vanguard)

Boss-like Foes

 * 30 Disc of Chaos (Final Chamber)

Followup

 * A Time for Heroes