Fortuna Sworn is the last of her kind. Her brother has disappeared, leaving her alone. She hides among humans, spending her days working at a bar and her nights searching for him - until she catches the eye of a powerful faerie.
Collith desires Fortuna. And if she will bind herself to him, he offers something irresistible. So Fortuna leaves her safe existence behind and descends into a world of glamorous creatures and deadly power.
She soon realises it's not just her heart she has bargained with - but quite possibly her life.