If the player is a vampire, they are able to start and complete the "A Man in the Crystal" quest for Agarinnu in Volenfaryon. Upon completing the quest, the player is able to talk with Agarinnu until the dialogue box is closed. However, attempting to talk to her again results in the standard "I don't fear you" line and the start of combat.

Neither of the other mabrigash there will talk to vampires.