Glow / Raven Kennedy.

Series info from goodreads.com.

"I was nothing but a road to Midas. A means to get to where he wanted to go, and I paved that path in gold. My life as been made up of gilded lies. But death has been shaped from rot. Like a phoenix caught fire, I will need to rise from the ashes and learn to wield my own power. Because my wings may have been clipped, but I am not in a cage, and I'm finally free to fly from the frozen kingdoms I've been kept in. Yet the world doesn't want to let me. That's the thing when you turn against a king-everyone else turns against you. Good thing I have a different king in my corner. But even with the dark threat of Slade Ravinger, the other monarchs are coming for me. So I will fight for him and he will kill for me, and if we need to become the villains, then so be it. Because so long as I live in this world, I won't be used again."--Goodreads