Alexa is one of the lucky ones.
When the faeries kidnapped her and tricked her into an unwilling marriage to a fae lord, she eventually managed to escape.
In the years since her ordeal, Alexa has learned every trick she can to avoid being taken back. She's done her best to build something resembling a normal life: a college degree, a good career, and no faeries. "Normal" seems impossible, though – especially when her kidnappers appear to be harmless myths to anyone who's never dealt with the fae.
When Alexa discovers that her best friend, Dinah, has been replaced by a changeling, her worst nightmares come true. All too aware what Dinah could be suffering at the hands of the faeries, Alexa realizes she has no choice.
She's the only one who can go into Faerie and get Dinah back.