What is the author's style in the novel, To the Bright Edge of the World?

This novel has a complicated structure. It shifts between letters in the present day, diary entries from Allen and Sophie, and various other writings. First, the letters are used after powerful scenes for Allen or Sophie to give the reader modern-day discussion between Walt and Josh, both who are personally invested in the events of 1885. Then, there are Allen's diaries. These begin at the end of March and are written at least twice a week all the way to August. These follow his adventure in Alaska. Thirdly, there are Sophie's diaries. These begin in January and continue through August, catching up to Allen's entries at the very end of the novel. These focus on her time alone in the barracks, the loss of her baby, and the way she deals with her grief.

Lastly, there are a variety of documents to provide information that the reader may not understand. For example, there are medical documents to show what doctors understood back in 1885. There are short quotes from the past and the future to explain why Alaska is so dangerous and what happened to others who attempted to travel through the wilderness. There are also articles from important newspapers to give more information about Allen and Sophie that the characters would not write in their diaries because they have already happened. These pieces are short and come after most of the diary entries. They are important because they provide explanations without relying on the characters.