The Empire has taken nearly everything from Ember. It's time for payback.

Now that Ember has switched sides, there's plenty of work to be done. She plans to rescue the oppressed flickers, find Stefan, and escape with him past the Empire's reach. But a new individual has infiltrated the Empire. The emperor is no longer Ember's greatest enemy. Even if she manages to rescue Stefan, can she leave her friends to face annihilation alone?