Sarah Delena White: 2 books

A mortal alchemist. A faerie king. A bond that transcends death. Betrayed by a trusted mentor, Sylvie Imanthiya hides on the fringes of society, caring for half-fae orphans and trading her alchemical creations on the black market. She lives for the one night each season when she can see her...

A new queen falls. A death lord rises. An ancient foe looms in the shadows. Sylvie Imanthiya is desperate to lead Faerie well and deepen the bond with her husband, former king Taylan Ashkalabek. But all hope of that vanishes when the winter solstice ceremony ends in disaster, stranding her...