Not literary, but fun teen fantasy (and plenty of romance).
Parents need to know that this book features both fantastical creature and murders, though violence is pretty limited. Kaylee has to deal with demons -- both real ones and symbolic ones (like accepting that her mother died so she can live). Also, it is a Harlequin, so expect some romance (although, making out is as far as the main characters go). Some characters drink, and an adult gives her daughter sleeping pills that aren't prescribed to her. In the end, though, the heroine is a strong character who fights for those she loves. Fantasy fans may even be inspired to research the myths this story is based around.