"There are only Four Knights,” corrects Ciaran, slightly indignant at the human’s mistake. “That… Executioner is no knight, and never shall be.”
She pauses as if to reflect for a moment, and back conveniently turned, removes the mask from her face, thoughtfully examining it for any cracks.
"I wear my porcelain mask because it is an unique symbol of my honor, granted to me by the great Lord Gwyn. Hawkeye Gough wears his helm for the same reason. The helms we wear, are all gifts, decorations of our knightly honor. It would be an affront to the Lord if we knights did not wear them."
The Lord’s Blade gently places the mask back on her face. “…Though, I imagine I will not be wearing mine much longer…”
She sets another flower on the grave of Artorias, and remains silent, staring at the dirty tassel.