This is the first book I am reading by S. M. Gaither, and I thoroughly enjoyed this fantasy novel.

Protagonist Cas survived fading sickness, an illness that killed nearly everyone else. The reason for her survival is a mystery, though the disease leaves its mark on her with her colorless hair and eyes.
She and her outlaw friends are returning from a mission when she meets Elander. Sparks fly between them.
Elander is the king’s captain and captures her in another encounter and seems intent on protecting her from the king. Cas, who is plenty capable of protecting herself, agrees to help the king find a way to cure fading sickness.
I loved all the world-building and the magic system. Powerful and mysterious God and Goddess are always a draw, and the author paints a dark and intricate picture of this empire.
The author peels the layer of mystery one by one, leaving the readers wanting more. The ending was a nice twist.
I enjoyed this book and looking forward to reading the other four books in the Shadows and Crown series.