The literary technique used in the excerpt from "The Tell-Tale Heart" is foreshadowing. The narrator's obsession suggests that a tragic event is imminent despite his calm demeanor. This sets a tone of suspense and anticipation for the reader.
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The excerpt from "The Tell-Tale Heart" primarily uses foreshadowing to hint at the impending tragic events due to the narrator's obsession. The calm yet disturbed narration sets a suspenseful tone. This technique is pivotal in creating anticipation for the story's darker turns. ;