What does Christine's memory of having written a novel lead her to do in Part 2: The Journal of Christine Lucas, November 13?

In her memory, Christine stood and took another novel off a shelf she had published and looked through it. This memory causes Christine to search her home for that novel, but she cannot find a copy of it anywhere. Christine then begins to wonder why Ben told her that she was a secretary at the time of her accident, never mentioning the novel.