Celia is a large woman with curly black hair. She wears a coppery necklace which helps filter all the languages she is cursed to speak simultaneously.
Years ago, prior to the events in The Hound of Rowan, she was stationed in Ghana. When an informant accused her of double talk, they cursed her to speak all languages simultaneously. To help her, Joseph Vincenti had the Sixth Years create a necklace that would filter all the languages down to Greek, as their project.