Of Fire and Ice: The Dragon's Marrow

Raid Epic
Starter: Examine the Dragon's Marrow to recieve quest: Of Fire and Ice: The Dragon's Marrow.

1st: Talk to Jaestin Chaldean back in the Tower of Moon, he then gives you notes that hint you in the right direction.

2nd: Go to Protector's Realm and kill Imzok's Revenge (Level 84 Epic x4) and loot a frost covered pommel gem from the chest.

3rd: Enter the Chamber of Destiny and fight The Leviathan.

4th: Head to Veeshan's Peak and kill Druushk.

Reward
Dragon's Marrow (Mythical) - Raid Verison