Though they are free from the Lich King's dominance, the death knights' battle has just begun...
Use your [Death Gate] spell to return to Acherus: The Ebon Hold. Report to Highlord Darion Mograine once you arrive.
The haze has been lifted. I can see as clearly now as the day that I plunged the Ashbringer into my own heart to free my father's cursed soul: my last memory as a free man.
We must take back Acherus from the Scourge if our order is to survive in this new world. I have taught you how to call forth a death gate. The death gate will return you to Acherus when you call upon it, <name>. The first battle of the Knights of the Ebon Blade is underway! Death to the Scourge!
The Lich King has returned to Northrend, wounded by the Ashbringer, but the second floor still holds the last of his armies.
Stepping through the [Death Gate] will take you out of the instance and into the main world. The lands below Acherus are now the Ruins of the Scarlet Enclave, and everything has been destroyed. The plague cauldron is still there but you can no longer get [Noth's Special Brew] from it, and the pumpkins have been transformed into indescribably hideous things that look like they are breathing. The ground soil is now puke green colored, the trees are now brown and decaying, and the skies are filled with the same noxious reddish-orange mist as in the rest of the Eastern Plaguelands.
If you manually walk back to Death's Breach, you will remain in the instanced version of the Plaguelands until you use a Death Gate, and Acherus is completely empty save for a few trainers. This is an expected issue given that the battle for Acherus takes place in the non-instanced Acherus, but it is somewhat funny.
-  In Service of The Lich King
-  The Emblazoned Runeblade
-  Runeforging: Preparation For Battle
-  The Endless Hunger
-  The Eye of Acherus
-  Death Comes From On High
-  The Might of The Scourge
-  Report to Scourge Commander Thalanor
-  The Scarlet Harvest
- Complete all of:
-  Gothik the Harvester
-  The Gift That Keeps On Giving
-  An Attack Of Opportunity
-  Massacre At Light's Point
-  Victory At Death's Breach!
-  The Will Of The Lich King
-  The Crypt of Remembrance
-  Nowhere To Run and Nowhere To Hide &  Lambs To The Slaughter
-  How To Win Friends And Influence Enemies
-  Behind Scarlet Lines
-  The Path Of The Righteous Crusader &  Brothers In Death
-  Bloody Breakout
-  A Cry For Vengeance!
-  A Special Surprise
-  A Sort Of Homecoming
-  Ambush At The Overlook
-  A Meeting With Fate
-  The Scarlet Onslaught Emerges
-  Scarlet Armies Approach...
-  The Scarlet Apocalypse
-  An End To All Things...
-  The Lich King's Command
-  The Light of Dawn
-  Taking Back Acherus
-  The Battle For The Ebon Hold
-  Where Kings Walk or  Saurfang's Blessing