Question: What novel is a sequel to crime book featuring Theodore Roosevelt and J. P. Morgan investigating the death of a 13-year old boy?
Sentence (from "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.
Relevant evidence: Yes