Complex sentence: The First Luisa Rey Mystery revisit minor characters from his novel "Ghostwritten", and the daughter of Ayrs in "Letters from Zedelghem" reappears in "Black Swan Green" as an elderly woman befriended by the main character.
Split into simpler sentences: The First Luisa Rey Mystery revisit minor characters from Mitchell's earlier novel "Ghostwritten". And the daughter of Ayrs in "Letters from Zedelghem" reappears in "Black Swan Green" as an elderly woman befriended by the main character.