Mazu is a Bosmer residing in Mistral, Khenarthi's Roost. He cannot be interacted with directly, but can be heard in conversation with Voranyarin as to the pronunciation of the word "quay." He is located by the entrance to Cat's Eye Quay.
Voranyarin: "Cat's Eye 'Key.' Would you listen to these bumpkins? Who says 'Key?'"
Nedthion: "Exactly. Call it Cat's Eye 'Kway,' like the Divines intended."
Voranyarin: "What are you on about? It's Cat's Eye 'Kay.' What imbecile says 'Kway?'"
Nedthion: "My mother. The harbormaster."