The entire novel is written from the main character's point of view. Using Davey's outlook to guide the story allows the reader to live through everything that Davey lives through making her a very relatable character. Relating to Davey is important because her character goes through various changes and developments. In order to follow the emotions that the characters around Davey can't understand, the reader has to know how Davey is feeling. In the end Davey's transition into closure is clear because the reader has gone through her entire grieving process with her.
The viewpoint used in the novel also makes Davey's position as the main character indisputable. Davey is a very emotional character going through one of the hardest things that any person can go through so it is almost necessary to hear her story in her voice. All of the transitions that Davey's character goes through are clearly marked because the reader is aware of everything in Davey's mind. Davey starts out feeling numb and alone at her father's funeral. The reader knows about the belongings that she has hidden in her closet and that she keeps a knife in her room at all times. These are points that the surrounding characters are not aware of.
The only limits of using Davey's voice to relay the entire account is that the details about the other characters are limited. The reader is left wondering how Walter's mind really works. Walter has the most conflict with Davey and it is hard to be objective about him only using her descriptions. Davey also has preconceived assessments of other characters like Jane and Bitsy that are never clarified.
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