what is meant by the word "locale" in terms of literature?
The "locale" of a piece of literature is the setting, the location of the action. Obviously, in many instances, a work may include more than one locale.
For example, The Adventures of Huckleberry Finn starts with the scene of the action being St. Petersburg, Missouri, the fictitious hometown of Huck and Tom Sawyer. However, the locale for most of the story is the Mississippi River, ranging from St. Petersburg all the way south to New Orleans.