Nibani Maesa is a Dunmer Wise Woman and a leader of the Nerevarine cult. She resides in the Wise Woman's Yurt.
She sells a variety of potions and other miscellaneous items as well as being a spellmaker.
After talking with the former Ashlanders in the previous quest, the Spymaster Caius Cosades will give the Nerevarine their new orders: they must go to the Urshilaku Tribe and speak with their leaders about the Nerevarine Prophecies.
The Nerevarine will need to talk to Folms Mirel at the Mages Guild in Caldera about the topic, 'work'. this will then trigger him asking them to get the ten Propylon Indices for him.
This quest can be obtained from Skink-in-Tree's-Shade in Sadrith Mora, if the Nerevarine has sufficient rank in the Mages Guild.
This quest involves he Nerevarine in locating the Cavern of the Incarnate. It forms the Third Trial of the Seven Visions of the Nerevarine and a significant part of the Main Quest.