Final answer:
Washington Irving sets the story in a land of 'masks and gondolas' to symbolize the idea that appearances can be deceiving.
Step-by-step explanation:
Washington Irving sets The Adventure of the Mysterious Stranger in a land of 'masks and gondolas' to symbolize the idea that appearances can be deceiving.
The use of masks represents the act of hiding one's true self behind a facade, while gondolas evoke a sense of elegance and romance. By placing the story in such a setting, Irving emphasizes the theme of deception and the blurred line between reality and illusion.
Learn more about symbolism in literature