Miss Austen comes to a close in a two-part finale airing back-to-back this Sunday, May 18, on PBS. The Masterpiece adaptation of the novel of the same name tells the story of what led Cassandra Austen to burn the letters of her sister, beloved author Jane Austen — an act that has left Cassy often painted as a villain in history books. But the true “soulmate” relationship between these two sisters, as star Keeley Hawes describes it to TV Insider, is at the root of everything in this tale, and Hawes says the central conflict of the show’s present-day timeline is going to reach a surprisingly “gentle” conclusion. Set many years after the death of Jane, Miss Austen shows Hawes as Cassandra, a woman who never married out of a commitment to her fiancé who tragically died before they could wed and to her sister, the closest relationship of her life.