Ashes of Gold by J. Elle

In the heart-pounding conclusion to the Wings of Ebony duology, which #1 New York Times bestselling author Nicole Yoon calls “bold, inventive, big-hearted and deeply perceptive,” Rue makes her final stand to reclaim her people’s stolen magic.

Rue has no memory of how she ended up locked in a basement prison without her magic or her allies. But she’s a girl from the East Row. And girls from the East Row don’t give up. Girls from the East Row pick themselves back up when they fall. Girls from the East Row break themselves out.

But reuniting with her friends is only half the battle. When she finds them again, Rue makes a vow: she will find a way to return the magic that the Chancellor has stolen from her father’s people. Yet even on Yiyo Peak, Rue is a misfit—with half a foot back in Houston and half a heart that is human as well as god, she’s not sure she’s the right person to lead the fight to reclaim a glorious past.

When a betrayal sends her into a tailspin, Rue must decide who to trust and how to be the leader that her people deserve…because if she doesn’t, it isn’t just Yiyo that will be destroyed—it will be Rue herself.
 
- Goodreads Summary