'We were meant to be seductive. We were designed to lure humans in.'

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.