Shards of magic

"In the underground Fae realm, only the strongest and most ruthless have power--but a young human woman forced into a life of servitude is about to change everything. Kenna Heron is best known in her village for being a little wild--some say half-feral--but she'll need every ounce of that ferocity to survive captivity in the cruel Fae court. Trapped as a servant in the faeries' underground kingdom of Mistei, Kenna must help her new mistress undertake...