You can find the Drak’Tharon Keep dungeon within Grizzly Hills.
The coordinates are (17.5,26.6)
/i Inflicts lots of physical damage. Consumes enemies, does damage. Explodes a Drakkari Invader corpse to damaging players. Mobs fly attacking boss & players during fight.
2. Novos the Summoner
/i Defeat waves of mobs coming from stairs. Kill 4 Crystal Handlers to activate boss. Arcane Blast will hit & knock back players. Avoid standing in Blizzard. Inflicts ticking shadow damage. Summons Troll Corpses to battle.
3. King Dred
/i Deals physical damage. Bites a player inflicting ticking damage, fully heal them to remove Bite. Fears players. Calls raptors to assist in battle. Kill the adds quickly.
4. The Prophet Tharon’ja
/i Deals shadow damage. Avoid standing in Rain of Fire. Stuns all players with Decay Flesh. You will all be turned into Skeletons with new abilities. Avoid standing in Poison Cloud.