More dialogue?

"Then he told me, that he would commence his narrative the next day, when I should be at leisure" (pg 13). Mary Shelley's style is one that I have few times come across in a literary work. She uses very little dialogue and relies heavily on frame stories. In the first twelve chapters, she uses at least three different levels of tales. The first is Walton's letters to his sister describing his adventures in the arctic. From the letters goes the "manuscript" (pg. 14) of Victor Frankenstein sharing his tale of his life up to that point. Then in Victor's story is his creation's account of his short life after his making. The only dialogue in the whole novel is short lines that the character telling the story couldn't describe through his own account. The characterization is mostly through the speaker's direct speech about a certain character. Therefore, readers must pay careful attention not only to detail, but must also stay focused on what account is being told.