In Edgar Allan Poe's "The Cask of Amontillado," the narrator describes his deceptive demeanor towards another character, Montresor, as they engage in conversation. Despite outwardly maintaining a friendly smile, he internally delights in Montresor’s fate of being trapped and tortured. This duality highlights the theme of manipulation and the darker aspects of revenge that permeate the story. The quote reflects the narrator's chilling enjoyment as he orchestrates Montresor's downfall. It emphasizes the contrast between appearance and reality, showcasing how a seemingly benign interaction can mask sinister intentions. Such a dynamic creates a tense atmosphere, pointing to the meticulous planning involved in the narrator's quest for vengeance.

I continued, as was my wont, to smile in his face, and he did not perceive that my smile now was at the thought of his immolation.