In the third story of Cloud Atlas, journalist Luisa Rey meets scientist Rufus Sixsmith in Buenas Yerbas, California. She investigates a nuclear power plant that Sixsmith suspected was not safe shortly before his suspiscious suicide.
In the second story of Cloud Atlas by David Mitchell, musician Robert Frobisher writes letters describing the events of his life to his lover, Rufus Sixsmith, in Zedelghem. He becomes a secretary for a formerly famous composer, eventually helping him acheive recognition once more.