78 books • 5 series
Book #4: The Other Half Lives
Book #9: The Telling Error
Book #32251: La Proie Ideale
Book #1: The Monogram Murders
Book #2: Closed Casket
Book #3: The Mystery of Three Quarters
Book #4: The Killings at Kingfisher Hill
Book #1: Little Face
Book #2: The Truth-Teller's Lie
Book #3: The Wrong Mother
Book #4: The Dead Lie Down
Book #5: The Cradle in the Grave