We get one POV shift, Edith gone sexual crazy. The next is her self discovery after her father’s death. Her mirror was flaking off in parts so that she was imperfectly reflected or not reflected at all. Like William she does not know herself. Everything else is his story is from his point of view but it’s like a 1st person narrative written in the 3rd. Detached. This is how he saw (or didn’t) see the world.