Publisher HarperCollins has revealed the cover for “Go Set a Watchman,” the hotly anticipated novel by Harper Lee that will be published on July 14.

Originally written in the mid 1950s, “Watchman” features many of the characters from Lee’s 1960 classic, “To Kill a Mockingbird.” The manuscript — which was never published but became the basis for “Mockingbird” — was rediscovered by Harper Lee’s lawyer and announced in February.

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The spare cover, which depicts a tree and a train coming down the tracks, was created by HarperCollins designer Jarrod Taylor.

“This design is perfect — it draws on the style of the decade the book was written, but with a modern twist,” said publisher Michael Morrison in a statement. “‘Go Set a Watchman’ begins with Scout’s train ride home, but more profoundly, it is about the journey Harper Lee’s beloved characters have taken in the subsequent 20 years of their lives.”

The new cover image is already up on the websites of online retailers amazon.com and barnesandnoble.com, where the book is available for pre-order.