What is the year of the event which occured first, The Angel of Darkness was published, or The Alienest was published?
The Angel of Darkness: The Angel of Darkness is a 1997 crime novel by Caleb Carr that was published by Random House (ISBN  ) and is a sequel to "The Alienist" (1994), and is the second book in the Kreizler series. The Alienist: The Alienist is a crime novel by Caleb Carr first published in 1994 and is the first book in the Kreizler series.
1994