chunk: Conscience-stricken and lonely, Dorian decides to reconcile with Sibyl, but he is too late, as Lord Henry informs him that Sibyl killed herself by swallowing prussic acid. Dorian then understands that, where his life is headed, lust and good looks shall suffice. Dorian locks the portrait up, and over the following eighteen years, he experiments with every vice, influenced by a morally poisonous French novel that Lord Henry Wotton gave him.
  [The narrative does not reveal the title of the French novel, but, at trial, Wilde said that the novel Dorian Gray read was À Rebours ('Against Nature', 1884), by Joris-Karl Huysmans.]