Speak to The Lich King and pick up In Service Of The Lich King. At the other end of the room turn in the quest and pick up The Emblazoned Runeblade.

Search the weapon racks for a [Battle-worn Sword] and use it near a Runeforge. Turn in the quest and take Runeforging: Preparation For Battle. Walk back to a Runeforge, open up your spellbook and use your newly learned Runeforging ability. I recommend taking Rune of Cinderglacier to engrave on your [Runed Soulblade].

Turn in the quest and take The Endless Hunger. In the middle of the room, free an Unworthy Initiate and then kill him. Turn in the quest and take the Eye Of Acherus and turn it in to The Lich King and take Death Comes From On High.

Use the orbs on the left or right to transform into an Eye Of Acherus. Once you gain control of the Eye, use ability (1) Siphon of Acherus to analyze the buildings below.

Scarlet Hold New Avalon Forge New Avalon Town Hall Chapel of the Crimson Flame

The eye itself moves pretty quickly so if you find yourself in danger don't hesitate to run away. Use (5) Recall Eye of Acherus to return back to Acherus and turn in the quest.

Take The Might Of The Scourge and use the pink teleporter behind you which takes you to the first level. Turn in the quest to Highlord Darion Mograine. Pick up Report To Scourge Commander Thalanor. Further ahead pick up and turn in The Power Of Blood, Frost and Unholy from Lord Thorval at (27,26).

Head back towards the balcony and turn in Report To Scourge Commander Thalanor and take The Scarlet Harvest.

Use the Scourge Gryphon nearby to get to Death's Breach.