The Discreet Hero by Mario Vargas Llosa:
“Could you tell me what this Sodom and Gomorrah is, Papa?” Fonchito asked, and Rigoberto noticed a sly gleam in his eyes.
“Two ancient cities, very corrupt, and because they were, God destroyed them,” he replied cautiously. “It’s what believers believe, at least. You have to read the Bible a little, son. For your general education. At least the New Testament. The world we live in is filled with biblical references, and if you don’t understand them, you’ll live in total confusion and ignorance. For example, you won’t understand anything of classical art or ancient history. Are you sure he said he knew Lucrecia and me?”
“And my mama too,” Fonchito specified. “He even said her name: Eloísa. He said it in a way that made it impossible not to believe he was telling the truth, Papa.”