This book is on pre-order until release date of September 13 and book delivery arrives.
 
The Corvus Court (The Vyrelian Chronicles #2) by LCB:
 
Power has a price—and Kaevra is running out of time to decide what she's willing to pay.

With enemies tightening their grip and allies growing scarce, Kaevra finds herself walking a razor’s edge between who she was and who the world demands she become. Her magic is changing, her past is catching up to her, and the shadows of war grow darker with each step she takes.

As rebellion flickers like flame across the fractured kingdom, Kaevra must face the some battles cannot be won without sacrifice.

And not all monsters wear crowns.