Gavin Guile is missing, leaving Kip and his allies to face the White King's horde in the fourth novel of the NYT bestselling Lightbringer series by Brent Week's. When does an empire fall?The Seven Satrapies have collapsed into four-and those are falling before the White King's armies.Gavin Guile, ex-emperor, ex-Prism, ex-galley slave, formerly the one man who might have averted war, is now lost, broken, and trapped in a prison crafted by his own hands to hold a great magical genius. But Gavin ha...