Answer: The topic or key idea that holds a story together is called the <u>theme.</u>
Explanation:<u></u><u>The theme of a literary work represents the central idea or message that is found throughout the entire story.</u> Themes vary according to the literary genres in which stories fall into. Moreover, in some cases, they are explicitly stated, while in some others, they are implicit.<u> Some of the most popular themes found in literature are love, family, friendship, death and corruption. </u>