This week I am waiting on Broken Crowns by Lauren DeStefano (March 22, 2016)
Summary from GoodReads
The city is falling out of the sky…
Morgan always thought it was just a saying. A metaphor. The words of the dying. But as they look up at the floating island that was their home, Pen and Morgan make a horrible discovery—Internment is sinking.
And it’s all Morgan’s fault.
Corrupted from the inside by one terrible king and assailed from the outside for precious resources by another, Internment could be destroyed because Morgan couldn’t keep a secret. As two wars become one, Morgan must find a way to bring her two worlds together to stop the kings that wage them…
Or face the furthest fall yet.
Why I'm Waiting