Remains-Silent

Remains-Silent is a silent Argonian member of the Dark Brotherhood. She can be found in Dark Brotherhood Sanctuary on the Gold Coast and in every Outlaws Refuge. The Player can receive supplies from her once per day.

Background
Remains-Silent only give the Player items, and she does not talk back.

Theories
(the following has not been confirmed canon)

Remains-Silent could have lost her tongue after a contract or earned a severe jaw damage, due to that she wheres that bone plate under her jaw.