Galip had once told Rüya that the only detective novel worth reading would be one in which the writer himself didn't know the identity of the murderer. Only then would the objects and characters not turn into herrings and red herrings devised by the omniscient writer. By virtue of representing their correspondences in reality, they would exist as themselves in the book, instead of as figments of the novelist's imagination.
-- Narrator (Perfectly Childish)

Importance: While Galip is reflecting on a comment he made to Rüya regarding the detective novels she liked to read, this reflects on The Black Book as a whole. At the point, the reader does not know that Jelal and Rüya will be murdered by the end of the book. However, Galip as the narrator had already experienced it. Galip is narrating the story of his search for Rüya after her disappearance, having commented that he was...