Gra-Muzgob Informant

Caius Cosades will give this quest after you finish the Antabolis Informant one. The objective is to speak to Sharn gra-Muzgob, in the Mages Guild in Balmora, and obtain information from him about the Nerevarine.

Sharn gra-Muzgob
Sharn gra-Muzgob will, once spoken too, confirm that she has information about the Nerevarine. However, there is a catch. She wishes you to first obtain the Skull of Llevule Andrano from the Andrano Ancestral Tomb. The tomb is located south of Pelagiad. Go there, kill the Undead creatures (they will vary depending on your current level), and grab the skull. Then go back to Balmora. Upon returning and speaking to Sharn, she will give you the "Nerevarine Cult Notes" Again, like the last Quest, there is nothing to stop you from reading these notes before handing them to Caius Cosades.

Rewards
For completion of this quest, Caius Cosades will increase your rank in the Blades to "Apprentice". You will also be given +1 Reputation from completing this quest. (Odd since the Blades are a SECRET organisation. Oh well.) He says that he needs some time to think about what should be done next. Suggestion: Go to the Fighters Guild and/or Mages Guild and do a few quests there whislt waiting for him.