Star Wars: Empire and Rebellion: Honor Among Thieves - James S. A. Corey - Bog

When a rebel spy needs extraction from under the nose of the Empire, who better to send than master smuggler, Han Solo? But rescuing a friendly spy is just the start of a wild adventure as the intel the spy uncovers leads Han and Leia to an ancient and deadly secret that threatens to be the Empire's ultimate - weapon against the Rebel Alliance.