For the first part, you need to find the area of the dungeon that has the Olthoi. To find that place always follow the right wall from the start (when at the two way down don't lose time going right go straight), when you see the place with the dead olthoi you are very close from the place with the live olthoi: find it and go to the big room with a ramp down : go down and take the tunnel on your left, and follow it to a "Pool of goo" (note it is not the big acid bath down, it is in a small acid bath in a room accessible from the bridge over acid).
Return to the bunker and this time go down the side with the Sclavus and find the Corrupted Mana Shard on the pedestal. Take it, and return it to Timaru.
Finally return the Wharu Fetish to the bunker and place it on the altar deep inside. The altar can be found on the same side as the Mana Shard, but at a T intersection, take a left instead of a right. There will be single tentacles blocking your way when you're in the right place. Kill them to move through the hallways to the altar.
Aun Kimintari tells you, "I am called Aun Kimintari, and I am honored to meet you."
Aun Kimintari tells you, "It is my chosen duty to guard the Keh of Tanae in Palenqual, what your Xuta call the Deru Trees of Marae Lassel, who are named Skuld, Urd and Verdandi in their own tongue."
Aun Kimintari tells you, "These Deru, young by their count of years, have been weakened by Wharu, and are now attacked by a thing called T'thuun. This thing must be stopped."
Aun Kimintari tells you, "I have a plan to weaken this 'T'thuun' and aid the Deru Trees, but I will need the assistance of your Xuta."
Aun Kimintari tells you, "I believe that we can use Wharu against this new threat, but I will need some items our scouts have found under the roots of the Deru."
Aun Kimintari tells you, "Find the passages of Wharu under the roots of the Deru Trees, east of Timaru. In those passages, find the Jelly left by their Tah. This can be used to attract Wharu, and will be important in our trap for this T'thuun."
