A wonderful new novel from one of America’s bestselling authors. Exploring the tensions between a local culture and a changing national political agenda; family arguments and love: an instant classic.

Now, at age 88, Ms. Lee has revealed that she wrote another novel after all — a sequel of sorts to “To Kill a Mockingbird,” featuring an aging Atticus Finch and his grown daughter, Scout.

Here’s the scoop: Ms. Lee wrote this new novel first. Her editor suggested she rewrite it from the perspective of a young girl — that became To Kill a Mockingbird. The first book was put away and forgotten — then recently found.

The 304-page book, “Go Set a Watchman,” takes place 20 years later in the same fictional town of Maycomb, Alabama, and begins as Jean Louise Finch, or Scout, the feisty child heroine of To Kill a Mockingbird, returns to visit her father.

Although written first, Go Set a Watchman is a continuation of the same story, with overlapping themes and characters.

The book’s publisher, Harper, plans to print two million copies of the new book for the first edition. We can safely predict the best-selling book of 2015.