Harper Lee's "new" book will tell us what happens to Scout and Atticus Finch and the other beloved characters many years after the original book. It is called Go Set A Watchmen. It focuses on Scout as an adult and her relationship with her father.
Well, actually it's an old book. I'm not exactly sure that you can call it a sequel, either.
After all, Lee apparently wrote this book before To Kill A Mockingbird. Her editor became interested in the backstory of the characters, which were told in flashbacks, and encouraged Lee to write a book on Scout as a child. That story became To Kill A Mockingbird and has since sold about 40 million copies and become an American classic.
The original manuscript for Go Set A Watchmen was considered lost, but was discovered by Lee's lawyer. It was attached to an original manuscript of To Kill A Mockingbird.
It will published in July 2015 with a first printing of 2 million copies, as Harper Lee wrote it, with no revisions.