Envy Sandra Brown this plot was written precisely like a book within a book. The reader needs all faculties present to be able to understand the flow.
SPOILER ALERT
In ch 20, if Parker was Roark, I think Todd is Noah and he stole Parker’s book and published like his own. The “accident” happened in the hope that Roark will die but he didn’t. So the author Maris fell in love with was Parker and not Noah.
