MARKED (ETERNAL GUARDIANS BOOK 1) 
by Elisabeth Naughton
4 STARS

Theron is an Argonaut, sent to find the chosen one from a prophecy. Casey thought she was a typical human, just doing what she could to make it through life and keep her grandmother's business running. The princess Isadora in Argolea is dying, and needs her unknown sister. Sparks fly as soon as Theron and Casey meet.  
 Typical romance theme. Boy falls for girl - girl falls for boy. Neither will admit their feelings and they make themselves miserable.
There is a good plot to the book, with Casey being the chosen one to save Argolea. We have demons, Argonauts (heroes from Greek mythology) and Gods. I enjoyed the story line and the characters. I liked watching the growth and change in Isadora.
This is book 1 in the series. Book 2 deals with Zander, an Argonaut who is cursed (or gifted depending on your point of view) with immortality.