In Chapter 9 of Book Three, why doesn’t Evey lift V’s mask? Who does she finally realize is behind the mask?

Before dying, V told Evey that she must know whose face lies behind the mask, but she must never know his face. This is when things start to sink in for her. All of the wisdom and information he passed on to her is now making an impression. It is herself that is behind the mask.She becomes more determined and develops her own plan. Instead of sitting around and feeling sorry for herself, the new Evey takes charge of her life.