Sacred Mesa (Ascension Mission)
You can enter this map by speaking with Great Ritual Priest Zahmut in Augury Rock location.
Lord Valdor ("Ascension is only available to those who are worthy of rising from the ranks of humanity. Seek out the Thirsty River, to the east. There you will prove your worth and be cleansed of your earthy imperfections."
General Mendoza ("Before you can gain entrance to Augury Rock, you must travel south to the Dunes of Despair. There you will aid Turai Ossa in infiltrating the Temple of Ascension and garnering the attention of the gods. When their gaze falls upon your shoulders, you will be one step closer to Ascending."
Commander Joziah ("You have reached your final destination on your quest for Ascension, but you have arrived before you are ready. head northeast to Elona Reach. There you must reassemble the Vision Crystal. Be warned, this is no trifling task. Elona Reach is where our people failed to Ascend."
After complete all three mission (at Thirsty River, Dunes of Despair and Elona Reach) speak to each ghost. The Vision Crystal has been assembled. You need to pass final test and the sacred mesa will be open.
Mission: Open Sacred Mesa.
NOTE: Step on each rune to open mesa.
*BONUS* Defeat the Doppelganger in under 50 seconds.
After complete this Mission you gain access to Dragon's Lair location.