The introduction or opening to a story is the

The introduction, more formally referred to as the exposition, is the beginning of the story. During this stage of the plot, the narrator introduces the setting and characters. The author might also introduce the main conflict in the exposition. A narrative hook (or just hook) is a literary technique in the opening of a story that "hooks" the reader's attention so that they will keep on reading. The "opening" may consist of several paragraphs for a short story, or several pages for a novel, but ideally it is the opening sentence in the book.

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